25464975090 has 64 divisors (see below), whose sum is σ = 65496819456. Its totient is φ = 6319855872.

The previous prime is 25464975071. The next prime is 25464975119. The reversal of 25464975090 is 9057946452.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473197 + ... + 524256.

It is an arithmetic number, because the mean of its divisors is an integer number (1023387804).

Almost surely, 2^25464975090 is an apocalyptic number.

25464975090 is an abundant number, since it is smaller than the sum of its proper divisors (40031844366).

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

25464975090 is a wasteful number, since it uses less digits than its factorization.

25464975090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997523.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 25464975090 in words is "twenty-five billion, four hundred sixty-four million, nine hundred seventy-five thousand, ninety".