25607465140 has 24 divisors (see below), whose sum is σ = 53778870432. Its totient is φ = 10242377760.

The previous prime is 25607465083. The next prime is 25607465183. The reversal of 25607465140 is 4156470652.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25607465093 and 25607465102.

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 7 ways as a sum of consecutive naturals, for example, 477987 + ... + 528853.

It is an arithmetic number, because the mean of its divisors is an integer number (2240786268).

Almost surely, 2^25607465140 is an apocalyptic number.

25607465140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25607465140 is an abundant number, since it is smaller than the sum of its proper divisors (28171405292).

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

25607465140 is a wasteful number, since it uses less digits than its factorization.

25607465140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76047 (or 76045 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 25607465140 in words is "twenty-five billion, six hundred seven million, four hundred sixty-five thousand, one hundred forty".