511020125256 has 32 divisors (see below), whose sum is σ = 1352700332640. Its totient is φ = 160320039168.

The previous prime is 511020125251. The next prime is 511020125279. The reversal of 511020125256 is 652521020115.

511020125256 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×511020125256² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511020125251) 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, 626249746 + ... + 626250561.

It is an arithmetic number, because the mean of its divisors is an integer number (42271885395).

Almost surely, 2^511020125256 is an apocalyptic number.

It is an amenable number.

511020125256 is an abundant number, since it is smaller than the sum of its proper divisors (841680207384).

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

511020125256 is a wasteful number, since it uses less digits than its factorization.

511020125256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252500333 (or 1252500329 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 511020125256 in words is "five hundred eleven billion, twenty million, one hundred twenty-five thousand, two hundred fifty-six".