25748406855 has 48 divisors (see below), whose sum is σ = 44891159040. Its totient is φ = 13652548800.

The previous prime is 25748406851. The next prime is 25748406877. The reversal of 25748406855 is 55860484752.

25748406855 is a `hidden beast` number, since 2 + 57 + 484 + 0 + 68 + 55 = 666.

It is not a de Polignac number, because 25748406855 - 2² = 25748406851 is a prime.

It is a super-2 number, since 2×25748406855² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25748406851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5861710 + ... + 5866100.

It is an arithmetic number, because the mean of its divisors is an integer number (935232480).

Almost surely, 2^25748406855 is an apocalyptic number.

25748406855 is a deficient number, since it is larger than the sum of its proper divisors (19142752185).

25748406855 is a wasteful number, since it uses less digits than its factorization.

25748406855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132 (or 5129 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 54.

The spelling of 25748406855 in words is "twenty-five billion, seven hundred forty-eight million, four hundred six thousand, eight hundred fifty-five".