25605267270 has 64 divisors (see below), whose sum is σ = 69954015744. Its totient is φ = 5937451520.

The previous prime is 25605267269. The next prime is 25605267299. The reversal of 25605267270 is 7276250652.

It is a congruent number.

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, 1679187 + ... + 1694366.

It is an arithmetic number, because the mean of its divisors is an integer number (1093031496).

Almost surely, 2^25605267270 is an apocalyptic number.

25605267270 is an abundant number, since it is smaller than the sum of its proper divisors (44348748474).

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

25605267270 is a wasteful number, since it uses less digits than its factorization.

25605267270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373597.

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 25605267270 in words is "twenty-five billion, six hundred five million, two hundred sixty-seven thousand, two hundred seventy".