25907534940 has 48 divisors (see below), whose sum is σ = 82904113152. Its totient is φ = 5921722176.

The previous prime is 25907534927. The next prime is 25907534951. The reversal of 25907534940 is 4943570952.

It is a super-3 number, since 3×25907534940³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25907534940.

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, 30841884 + ... + 30842723.

It is an arithmetic number, because the mean of its divisors is an integer number (1727169024).

Almost surely, 2^25907534940 is an apocalyptic number.

25907534940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25907534940 is an abundant number, since it is smaller than the sum of its proper divisors (56996578212).

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

25907534940 is a wasteful number, since it uses less digits than its factorization.

25907534940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61684626 (or 61684624 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 25907534940 in words is "twenty-five billion, nine hundred seven million, five hundred thirty-four thousand, nine hundred forty".