25763891504 has 40 divisors (see below), whose sum is σ = 55210268400. Its totient is φ = 11569644288.

The previous prime is 25763891501. The next prime is 25763891519. The reversal of 25763891504 is 40519836752.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25763891501) 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, 1666154 + ... + 1681545.

It is an arithmetic number, because the mean of its divisors is an integer number (1380256710).

It is a 1-persistent number, because it is pandigital, but 2⋅25763891504 = 51527783008 is not.

Almost surely, 2^25763891504 is an apocalyptic number.

It is an amenable number.

25763891504 is an abundant number, since it is smaller than the sum of its proper divisors (29446376896).

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

25763891504 is a wasteful number, since it uses less digits than its factorization.

25763891504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347757 (or 3347751 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 25763891504 in words is "twenty-five billion, seven hundred sixty-three million, eight hundred ninety-one thousand, five hundred four".