25574712440 has 16 divisors (see below), whose sum is σ = 57543103080. Its totient is φ = 10229884960.

The previous prime is 25574712431. The next prime is 25574712463. The reversal of 25574712440 is 4421747552.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 319683866 + ... + 319683945.

Almost surely, 2^25574712440 is an apocalyptic number.

25574712440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25574712440 is an abundant number, since it is smaller than the sum of its proper divisors (31968390640).

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

25574712440 is a wasteful number, since it uses less digits than its factorization.

25574712440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639367822 (or 639367818 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 41.

The spelling of 25574712440 in words is "twenty-five billion, five hundred seventy-four million, seven hundred twelve thousand, four hundred forty".