25421088 has 192 divisors, whose sum is σ = 88058880. Its totient is φ = 6220800.

The previous prime is 25421083. The next prime is 25421093. The reversal of 25421088 is 88012452.

It is an interprime number because it is at equal distance from previous prime (25421083) and next prime (25421093).

It is not an unprimeable number, because it can be changed into a prime (25421083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140358 + ... + 140538.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 2^25421088 is an apocalyptic number.

25421088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25421088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44029440).

25421088 is an abundant number, since it is smaller than the sum of its proper divisors (62637792).

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

25421088 is a wasteful number, since it uses less digits than its factorization.

25421088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 25421088 is about 5041.9329626642. The cubic root of 25421088 is about 294.0343335349.

The spelling of 25421088 in words is "twenty-five million, four hundred twenty-one thousand, eighty-eight".