52121124 has 96 divisors (see below), whose sum is σ = 149681280. Its totient is φ = 15552000.

The previous prime is 52121093. The next prime is 52121141. The reversal of 52121124 is 42112125.

52121124 is a `hidden beast` number, since 521 + 21 + 124 = 666.

It is a super-2 number, since 2×52121124² = 5433223134046752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 52121097 and 52121106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86424 + ... + 87024.

It is an arithmetic number, because the mean of its divisors is an integer number (1559180).

Almost surely, 2^52121124 is an apocalyptic number.

52121124 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52121124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74840640).

52121124 is an abundant number, since it is smaller than the sum of its proper divisors (97560156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52121124 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (52121123) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (698).

52121124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 690 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 52121124 is about 7219.4961042998. The cubic root of 52121124 is about 373.5406965220.

Adding to 52121124 its reverse (42112125), we get a palindrome (94233249).

It can be divided in two parts, 5212 and 1124, that added together give a palindrome (6336).

The spelling of 52121124 in words is "fifty-two million, one hundred twenty-one thousand, one hundred twenty-four".