25712563882 has 8 divisors (see below), whose sum is σ = 38573820900. Its totient is φ = 12854623584.

The previous prime is 25712563879. The next prime is 25712563897. The reversal of 25712563882 is 28836521752.

It can be written as a sum of positive squares in 2 ways, for example, as 25302946761 + 409617121 = 159069^2 + 20239^2 .

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

It is a super-2 number, since 2×25712563882² (a number of 22 digits) contains 22 as substring.

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, 809707 + ... + 840862.

Almost surely, 2^25712563882 is an apocalyptic number.

25712563882 is a deficient number, since it is larger than the sum of its proper divisors (12861257018).

25712563882 is a wasteful number, since it uses less digits than its factorization.

25712563882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658360.

The product of its digits is 1612800, while the sum is 49.

The spelling of 25712563882 in words is "twenty-five billion, seven hundred twelve million, five hundred sixty-three thousand, eight hundred eighty-two".