25603047984 has 40 divisors (see below), whose sum is σ = 66148391232. Its totient is φ = 8533422400.

The previous prime is 25603047971. The next prime is 25603047989. The reversal of 25603047984 is 48974030652.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (25603047989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527959 + ... + 574409.

Almost surely, 2^25603047984 is an apocalyptic number.

25603047984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25603047984 is an abundant number, since it is smaller than the sum of its proper divisors (40545343248).

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

25603047984 is a wasteful number, since it uses less digits than its factorization.

25603047984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57945 (or 57939 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 25603047984 in words is "twenty-five billion, six hundred three million, forty-seven thousand, nine hundred eighty-four".