1256492056524 has 24 divisors (see below), whose sum is σ = 2932007237040. Its totient is φ = 418803194304.

The previous prime is 1256492056517. The next prime is 1256492056571. The reversal of 1256492056524 is 4256502946521.

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, 3245539 + ... + 3611994.

It is an arithmetic number, because the mean of its divisors is an integer number (122166968210).

Almost surely, 2^{1256492056524} is an apocalyptic number.

It is an amenable number.

1256492056524 is an abundant number, since it is smaller than the sum of its proper divisors (1675515180516).

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

1256492056524 is a wasteful number, since it uses less digits than its factorization.

1256492056524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6872809 (or 6872807 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 1256492056524 in words is "one trillion, two hundred fifty-six billion, four hundred ninety-two million, fifty-six thousand, five hundred twenty-four".