25425509548 has 12 divisors (see below), whose sum is σ = 44501700880. Its totient is φ = 12710737872.

The previous prime is 25425509531. The next prime is 25425509567. The reversal of 25425509548 is 84590552452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475683 + ... + 526426.

Almost surely, 2^25425509548 is an apocalyptic number.

It is an amenable number.

25425509548 is a deficient number, since it is larger than the sum of its proper divisors (19076191332).

25425509548 is a wasteful number, since it uses less digits than its factorization.

25425509548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008456 (or 1008454 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 49.

The spelling of 25425509548 in words is "twenty-five billion, four hundred twenty-five million, five hundred nine thousand, five hundred forty-eight".