25604372 has 6 divisors (see below), whose sum is σ = 44807658. Its totient is φ = 12802184.

The previous prime is 25604297. The next prime is 25604389. The reversal of 25604372 is 27340652.

It can be written as a sum of positive squares in only one way, i.e., 20921476 + 4682896 = 4574^2 + 2164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200543 + ... + 3200550.

It is an arithmetic number, because the mean of its divisors is an integer number (7467943).

Almost surely, 2^25604372 is an apocalyptic number.

It is an amenable number.

25604372 is a deficient number, since it is larger than the sum of its proper divisors (19203286).

25604372 is a wasteful number, since it uses less digits than its factorization.

25604372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401097 (or 6401095 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 25604372 is about 5060.0762840100. The cubic root of 25604372 is about 294.7392966297.

The spelling of 25604372 in words is "twenty-five million, six hundred four thousand, three hundred seventy-two".