25520855374 has 16 divisors (see below), whose sum is σ = 43755913728. Its totient is φ = 10936040472.

The previous prime is 25520855341. The next prime is 25520855387. The reversal of 25520855374 is 47355802552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954 + ... + 226189.

It is an arithmetic number, because the mean of its divisors is an integer number (2734744608).

Almost surely, 2^25520855374 is an apocalyptic number.

25520855374 is a deficient number, since it is larger than the sum of its proper divisors (18235058354).

25520855374 is a wasteful number, since it uses less digits than its factorization.

25520855374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244839.

The product of its (nonzero) digits is 1680000, while the sum is 46.

The spelling of 25520855374 in words is "twenty-five billion, five hundred twenty million, eight hundred fifty-five thousand, three hundred seventy-four".