25504472 has 16 divisors (see below), whose sum is σ = 54652560. Its totient is φ = 10930464.

The previous prime is 25504469. The next prime is 25504477. The reversal of 25504472 is 27440552.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25504477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227663 + ... + 227774.

It is an arithmetic number, because the mean of its divisors is an integer number (3415785).

Almost surely, 2^25504472 is an apocalyptic number.

It is an amenable number.

25504472 is an abundant number, since it is smaller than the sum of its proper divisors (29148088).

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

25504472 is a wasteful number, since it uses less digits than its factorization.

25504472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455450 (or 455446 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 25504472 is about 5050.1952437505. The cubic root of 25504472 is about 294.3554711224.

The spelling of 25504472 in words is "twenty-five million, five hundred four thousand, four hundred seventy-two".