252526779056 has 40 divisors (see below), whose sum is σ = 500713160640. Its totient is φ = 123311232576.

The previous prime is 252526779023. The next prime is 252526779067. The reversal of 252526779056 is 650977625252.

It is a happy number.

It is a super-2 number, since 2×252526779056² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252526778992 and 252526779010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6780935 + ... + 6818073.

It is an arithmetic number, because the mean of its divisors is an integer number (12517829016).

Almost surely, 2^252526779056 is an apocalyptic number.

It is an amenable number.

252526779056 is a deficient number, since it is larger than the sum of its proper divisors (248186381584).

252526779056 is a wasteful number, since it uses less digits than its factorization.

252526779056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47073 (or 47067 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 56.

The spelling of 252526779056 in words is "two hundred fifty-two billion, five hundred twenty-six million, seven hundred seventy-nine thousand, fifty-six".