25220672 has 14 divisors (see below), whose sum is σ = 50047398. Its totient is φ = 12610304.

The previous prime is 25220669. The next prime is 25220681. The reversal of 25220672 is 27602252.

It can be written as a sum of positive squares in only one way, i.e., 19149376 + 6071296 = 4376^2 + 2464^2 .

It is a super-2 number, since 2×25220672² = 1272164592263168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196973 + ... + 197100.

Almost surely, 2^25220672 is an apocalyptic number.

It is an amenable number.

25220672 is a deficient number, since it is larger than the sum of its proper divisors (24826726).

25220672 is an equidigital number, since it uses as much as digits as its factorization.

25220672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394085 (or 394075 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 25220672 is about 5022.0187176075. The cubic root of 25220672 is about 293.2595866033.

The spelling of 25220672 in words is "twenty-five million, two hundred twenty thousand, six hundred seventy-two".