52121760 has 48 divisors (see below), whose sum is σ = 164185056. Its totient is φ = 13899008.

The previous prime is 52121753. The next prime is 52121767. The reversal of 52121760 is 6712125.

It is an interprime number because it is at equal distance from previous prime (52121753) and next prime (52121767).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 52121760.

It is not an unprimeable number, because it can be changed into a prime (52121767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53814 + ... + 54773.

It is an arithmetic number, because the mean of its divisors is an integer number (3420522).

Almost surely, 2^52121760 is an apocalyptic number.

It is an amenable number.

52121760 is an abundant number, since it is smaller than the sum of its proper divisors (112063296).

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

52121760 is a wasteful number, since it uses less digits than its factorization.

52121760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108605 (or 108597 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 52121760 is about 7219.5401515609. The cubic root of 52121760 is about 373.5422158734.

Adding to 52121760 its reverse (6712125), we get a palindrome (58833885).

The spelling of 52121760 in words is "fifty-two million, one hundred twenty-one thousand, seven hundred sixty".