25012004460 has 96 divisors (see below), whose sum is σ = 75369051072. Its totient is φ = 6174597120.

The previous prime is 25012004447. The next prime is 25012004467. The reversal of 25012004460 is 6440021052.

It is a self number, because there is not a number n which added to its sum of digits gives 25012004460.

It is not an unprimeable number, because it can be changed into a prime (25012004467) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 138777 + ... + 263216.

It is an arithmetic number, because the mean of its divisors is an integer number (785094282).

Almost surely, 2^25012004460 is an apocalyptic number.

25012004460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25012004460 is an abundant number, since it is smaller than the sum of its proper divisors (50357046612).

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

25012004460 is a wasteful number, since it uses less digits than its factorization.

25012004460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402083 (or 402081 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The spelling of 25012004460 in words is "twenty-five billion, twelve million, four thousand, four hundred sixty".