25442604 has 72 divisors (see below), whose sum is σ = 71705088. Its totient is φ = 7540320.

The previous prime is 25442603. The next prime is 25442609. The reversal of 25442604 is 40624452.

25442604 is a `hidden beast` number, since 2 + 54 + 4 + 2 + 604 = 666.

It is not an unprimeable number, because it can be changed into a prime (25442603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17929 + ... + 19295.

It is an arithmetic number, because the mean of its divisors is an integer number (995904).

Almost surely, 2^25442604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25442604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35852544).

25442604 is an abundant number, since it is smaller than the sum of its proper divisors (46262484).

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

25442604 is a wasteful number, since it uses less digits than its factorization.

25442604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435 (or 1430 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 25442604 is about 5044.0662168532. The cubic root of 25442604 is about 294.1172654521.

The spelling of 25442604 in words is "twenty-five million, four hundred forty-two thousand, six hundred four".