25321968 has 60 divisors (see below), whose sum is σ = 80993328. Its totient is φ = 7234560.

The previous prime is 25321963. The next prime is 25321973. The reversal of 25321968 is 86912352.

It is an interprime number because it is at equal distance from previous prime (25321963) and next prime (25321973).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25321963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11553 + ... + 13568.

Almost surely, 2^25321968 is an apocalyptic number.

25321968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25321968 is an abundant number, since it is smaller than the sum of its proper divisors (55671360).

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

25321968 is a wasteful number, since it uses less digits than its factorization.

25321968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25142 (or 25133 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 25321968 is about 5032.0937988078. The cubic root of 25321968 is about 293.6516768865.

The spelling of 25321968 in words is "twenty-five million, three hundred twenty-one thousand, nine hundred sixty-eight".