25305255028 has 12 divisors (see below), whose sum is σ = 44285567872. Its totient is φ = 12652235640.

The previous prime is 25305254959. The next prime is 25305255037. The reversal of 25305255028 is 82055250352.

It is a congruent number.

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, 85501 + ... + 240667.

Almost surely, 2^25305255028 is an apocalyptic number.

It is an amenable number.

25305255028 is a deficient number, since it is larger than the sum of its proper divisors (18980312844).

25305255028 is a wasteful number, since it uses less digits than its factorization.

25305255028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195942 (or 195940 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 25305255028 in words is "twenty-five billion, three hundred five million, two hundred fifty-five thousand, twenty-eight".