52391124 has 60 divisors (see below), whose sum is σ = 138403188. Its totient is φ = 17280000.

The previous prime is 52391123. The next prime is 52391137. The reversal of 52391124 is 42119325.

It can be written as a sum of positive squares in 2 ways, for example, as 51581124 + 810000 = 7182^2 + 900^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52391123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31924 + ... + 33524.

Almost surely, 2^52391124 is an apocalyptic number.

52391124 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 52391124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69201594).

52391124 is an abundant number, since it is smaller than the sum of its proper divisors (86012064).

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

52391124 is a wasteful number, since it uses less digits than its factorization.

52391124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1707 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 52391124 is about 7238.1713160162. The cubic root of 52391124 is about 374.1845962631.

The spelling of 52391124 in words is "fifty-two million, three hundred ninety-one thousand, one hundred twenty-four".