5256239520 has 288 divisors, whose sum is σ = 20104737408. Its totient is φ = 1130545152.

The previous prime is 5256239507. The next prime is 5256239539. The reversal of 5256239520 is 259326525.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 968334 + ... + 973746.

It is an arithmetic number, because the mean of its divisors is an integer number (69808116).

Almost surely, 2^5256239520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5256239520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10052368704).

5256239520 is an abundant number, since it is smaller than the sum of its proper divisors (14848497888).

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

5256239520 is a wasteful number, since it uses less digits than its factorization.

5256239520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5472 (or 5447 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 5256239520 is about 72499.9277241019. The cubic root of 5256239520 is about 1738.7015812124.

The spelling of 5256239520 in words is "five billion, two hundred fifty-six million, two hundred thirty-nine thousand, five hundred twenty".