25725997480 has 32 divisors (see below), whose sum is σ = 58097111040. Its totient is φ = 10252422720.

The previous prime is 25725997433. The next prime is 25725997499. The reversal of 25725997480 is 8479952752.

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, 1175784 + ... + 1197463.

It is an arithmetic number, because the mean of its divisors is an integer number (1815534720).

Almost surely, 2^25725997480 is an apocalyptic number.

25725997480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25725997480 is an abundant number, since it is smaller than the sum of its proper divisors (32371113560).

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

25725997480 is a wasteful number, since it uses less digits than its factorization.

25725997480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373529 (or 2373525 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 25725997480 in words is "twenty-five billion, seven hundred twenty-five million, nine hundred ninety-seven thousand, four hundred eighty".