25588904242 has 128 divisors (see below), whose sum is σ = 45954293760. Its totient is φ = 10570560000.

The previous prime is 25588904221. The next prime is 25588904249. The reversal of 25588904242 is 24240988552.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (25588904249) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 169462867 + ... + 169463017.

It is an arithmetic number, because the mean of its divisors is an integer number (359017920).

Almost surely, 2^25588904242 is an apocalyptic number.

25588904242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25588904242 is a deficient number, since it is larger than the sum of its proper divisors (20365389518).

25588904242 is a wasteful number, since it uses less digits than its factorization.

25588904242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 1843200, while the sum is 49.

The spelling of 25588904242 in words is "twenty-five billion, five hundred eighty-eight million, nine hundred four thousand, two hundred forty-two".