25275818040 has 64 divisors (see below), whose sum is σ = 82720863360. Its totient is φ = 6127470720.

The previous prime is 25275818017. The next prime is 25275818111. The reversal of 25275818040 is 4081857252.

It is a junction number, because it is equal to n+sod(n) for n = 25275817983 and 25275818001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9572854 + ... + 9575493.

It is an arithmetic number, because the mean of its divisors is an integer number (1292513490).

Almost surely, 2^25275818040 is an apocalyptic number.

25275818040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25275818040 is an abundant number, since it is smaller than the sum of its proper divisors (57445045320).

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

25275818040 is a wasteful number, since it uses less digits than its factorization.

25275818040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19148372 (or 19148368 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The spelling of 25275818040 in words is "twenty-five billion, two hundred seventy-five million, eight hundred eighteen thousand, forty".