25133257 has 8 divisors (see below), whose sum is σ = 26511200. Its totient is φ = 23760864.

The previous prime is 25133221. The next prime is 25133263. The reversal of 25133257 is 75233152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25133257 - 2¹¹ = 25131209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25133657) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 10693 + ... + 12829.

It is an arithmetic number, because the mean of its divisors is an integer number (3313900).

Almost surely, 2^25133257 is an apocalyptic number.

It is an amenable number.

25133257 is a deficient number, since it is larger than the sum of its proper divisors (1377943).

25133257 is a wasteful number, since it uses less digits than its factorization.

25133257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775.

The product of its digits is 6300, while the sum is 28.

The square root of 25133257 is about 5013.3079897409. The cubic root of 25133257 is about 292.9203812446.

The spelling of 25133257 in words is "twenty-five million, one hundred thirty-three thousand, two hundred fifty-seven".