25487272 has 8 divisors (see below), whose sum is σ = 47788650. Its totient is φ = 12743632.

The previous prime is 25487257. The next prime is 25487291. The reversal of 25487272 is 27278452.

It can be written as a sum of positive squares in only one way, i.e., 22410756 + 3076516 = 4734^2 + 1754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1592947 + ... + 1592962.

Almost surely, 2^25487272 is an apocalyptic number.

It is an amenable number.

25487272 is a deficient number, since it is larger than the sum of its proper divisors (22301378).

25487272 is a wasteful number, since it uses less digits than its factorization.

25487272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185915 (or 3185911 counting only the distinct ones).

The product of its digits is 62720, while the sum is 37.

The square root of 25487272 is about 5048.4920520884. The cubic root of 25487272 is about 294.2892859627.

The spelling of 25487272 in words is "twenty-five million, four hundred eighty-seven thousand, two hundred seventy-two".