25140402880 has 56 divisors (see below), whose sum is σ = 60458390640. Its totient is φ = 9956582400.

The previous prime is 25140402877. The next prime is 25140402979. The reversal of 25140402880 is 8820404152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356610 + ... + 421249.

Almost surely, 2^25140402880 is an apocalyptic number.

25140402880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25140402880 is an abundant number, since it is smaller than the sum of its proper divisors (35317987760).

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

25140402880 is a wasteful number, since it uses less digits than its factorization.

25140402880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777977 (or 777967 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The spelling of 25140402880 in words is "twenty-five billion, one hundred forty million, four hundred two thousand, eight hundred eighty".