25047870885 has 24 divisors (see below), whose sum is σ = 44816838144. Its totient is φ = 12927932640.

The previous prime is 25047870877. The next prime is 25047870889. The reversal of 25047870885 is 58807874052.

25047870885 is a `hidden beast` number, since 25 + 0 + 478 + 70 + 8 + 85 = 666.

It is not a de Polignac number, because 25047870885 - 2³ = 25047870877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25047870889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8976337 + ... + 8979126.

It is an arithmetic number, because the mean of its divisors is an integer number (1867368256).

Almost surely, 2^25047870885 is an apocalyptic number.

It is an amenable number.

25047870885 is a deficient number, since it is larger than the sum of its proper divisors (19768967259).

25047870885 is a wasteful number, since it uses less digits than its factorization.

25047870885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17955505 (or 17955502 counting only the distinct ones).

The product of its (nonzero) digits is 5017600, while the sum is 54.

The spelling of 25047870885 in words is "twenty-five billion, forty-seven million, eight hundred seventy thousand, eight hundred eighty-five".