25863937572 has 24 divisors (see below), whose sum is σ = 65835477792. Its totient is φ = 7837556800.

The previous prime is 25863937553. The next prime is 25863937591. The reversal of 25863937572 is 27573936852.

It is an interprime number because it is at equal distance from previous prime (25863937553) and next prime (25863937591).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97969329 + ... + 97969592.

It is an arithmetic number, because the mean of its divisors is an integer number (2743144908).

Almost surely, 2^25863937572 is an apocalyptic number.

25863937572 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25863937572 is an abundant number, since it is smaller than the sum of its proper divisors (39971540220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25863937572 is a wasteful number, since it uses less digits than its factorization.

25863937572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195938939 (or 195938937 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 57.

The spelling of 25863937572 in words is "twenty-five billion, eight hundred sixty-three million, nine hundred thirty-seven thousand, five hundred seventy-two".