25126442660 has 48 divisors (see below), whose sum is σ = 58132372032. Its totient is φ = 9046416000.

The previous prime is 25126442657. The next prime is 25126442699. The reversal of 25126442660 is 6624462152.

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, 543182 + ... + 587621.

It is an arithmetic number, because the mean of its divisors is an integer number (1211091084).

Almost surely, 2^25126442660 is an apocalyptic number.

25126442660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25126442660 is an abundant number, since it is smaller than the sum of its proper divisors (33005929372).

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

25126442660 is a wasteful number, since it uses less digits than its factorization.

25126442660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130924 (or 1130922 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 25126442660 in words is "twenty-five billion, one hundred twenty-six million, four hundred forty-two thousand, six hundred sixty".