25598928 has 40 divisors (see below), whose sum is σ = 69613600. Its totient is φ = 8083584.

The previous prime is 25598921. The next prime is 25598933. The reversal of 25598928 is 82989552.

It is a super-2 number, since 2×25598928² = 1310610229498368, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25598921) 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, 13123 + ... + 14946.

It is an arithmetic number, because the mean of its divisors is an integer number (1740340).

Almost surely, 2^25598928 is an apocalyptic number.

It is an amenable number.

25598928 is an abundant number, since it is smaller than the sum of its proper divisors (44014672).

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

25598928 is a wasteful number, since it uses less digits than its factorization.

25598928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28099 (or 28093 counting only the distinct ones).

The product of its digits is 518400, while the sum is 48.

The square root of 25598928 is about 5059.5383188587. The cubic root of 25598928 is about 294.7184059986.

The spelling of 25598928 in words is "twenty-five million, five hundred ninety-eight thousand, nine hundred twenty-eight".