25457272 has 8 divisors (see below), whose sum is σ = 47732400. Its totient is φ = 12728632.

The previous prime is 25457233. The next prime is 25457281. The reversal of 25457272 is 27275452.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1591072 + ... + 1591087.

It is an arithmetic number, because the mean of its divisors is an integer number (5966550).

Almost surely, 2^25457272 is an apocalyptic number.

It is an amenable number.

25457272 is a deficient number, since it is larger than the sum of its proper divisors (22275128).

25457272 is a wasteful number, since it uses less digits than its factorization.

25457272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182165 (or 3182161 counting only the distinct ones).

The product of its digits is 39200, while the sum is 34.

The square root of 25457272 is about 5045.5199930235. The cubic root of 25457272 is about 294.1737754339.

The spelling of 25457272 in words is "twenty-five million, four hundred fifty-seven thousand, two hundred seventy-two".