25047051938 has 8 divisors (see below), whose sum is σ = 37592413740. Its totient is φ = 12516247360.

The previous prime is 25047051923. The next prime is 25047051959. The reversal of 25047051938 is 83915074052.

It can be written as a sum of positive squares in 2 ways, for example, as 21011372209 + 4035679729 = 144953^2 + 63527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3635003 + ... + 3641886.

Almost surely, 2^25047051938 is an apocalyptic number.

25047051938 is a deficient number, since it is larger than the sum of its proper divisors (12545361802).

25047051938 is a wasteful number, since it uses less digits than its factorization.

25047051938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278612.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 25047051938 in words is "twenty-five billion, forty-seven million, fifty-one thousand, nine hundred thirty-eight".