25993488 has 20 divisors (see below), whose sum is σ = 67149968. Its totient is φ = 8664480.

The previous prime is 25993441. The next prime is 25993489. The reversal of 25993488 is 88439952.

It is a super-2 number, since 2×25993488² = 1351322836812288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 541531 = 25993488 / (2 + 5 + 9 + 9 + 3 + 4 + 8 + 8).

It is not an unprimeable number, because it can be changed into a prime (25993489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270718 + ... + 270813.

Almost surely, 2^25993488 is an apocalyptic number.

It is an amenable number.

25993488 is an abundant number, since it is smaller than the sum of its proper divisors (41156480).

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

25993488 is a wasteful number, since it uses less digits than its factorization.

25993488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541542 (or 541536 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 25993488 is about 5098.3809194685. The cubic root of 25993488 is about 296.2248717315.

The spelling of 25993488 in words is "twenty-five million, nine hundred ninety-three thousand, four hundred eighty-eight".