52456240 has 40 divisors (see below), whose sum is σ = 122635008. Its totient is φ = 20866560.

The previous prime is 52456223. The next prime is 52456241. The reversal of 52456240 is 4265425.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×52456240² = 5503314229875200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52456199 and 52456208.

It is not an unprimeable number, because it can be changed into a prime (52456241) 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, 13564 + ... + 16996.

Almost surely, 2^52456240 is an apocalyptic number.

It is an amenable number.

52456240 is an abundant number, since it is smaller than the sum of its proper divisors (70178768).

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

52456240 is a wasteful number, since it uses less digits than its factorization.

52456240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637 (or 3631 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 52456240 is about 7242.6680166911. The cubic root of 52456240 is about 374.3395545514.

The spelling of 52456240 in words is "fifty-two million, four hundred fifty-six thousand, two hundred forty".