25121552 has 10 divisors (see below), whose sum is σ = 48673038. Its totient is φ = 12560768.

The previous prime is 25121539. The next prime is 25121581. The reversal of 25121552 is 25512152.

It can be written as a sum of positive squares in only one way, i.e., 23001616 + 2119936 = 4796^2 + 1456^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 785033 + ... + 785064.

Almost surely, 2^25121552 is an apocalyptic number.

It is an amenable number.

25121552 is a deficient number, since it is larger than the sum of its proper divisors (23551486).

25121552 is a wasteful number, since it uses less digits than its factorization.

25121552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570105 (or 1570099 counting only the distinct ones).

The product of its digits is 1000, while the sum is 23.

The square root of 25121552 is about 5012.1404609209. The cubic root of 25121552 is about 292.8749014585.

The spelling of 25121552 in words is "twenty-five million, one hundred twenty-one thousand, five hundred fifty-two".