25077312238 has 32 divisors (see below), whose sum is σ = 43464169728. Its totient is φ = 10724630400.

The previous prime is 25077312167. The next prime is 25077312259. The reversal of 25077312238 is 83221377052.

It is a self number, because there is not a number n which added to its sum of digits gives 25077312238.

It is a congruent number.

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, 1296031 + ... + 1315237.

It is an arithmetic number, because the mean of its divisors is an integer number (1358255304).

Almost surely, 2^25077312238 is an apocalyptic number.

25077312238 is a deficient number, since it is larger than the sum of its proper divisors (18386857490).

25077312238 is a wasteful number, since it uses less digits than its factorization.

25077312238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22728.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 25077312238 in words is "twenty-five billion, seventy-seven million, three hundred twelve thousand, two hundred thirty-eight".