25253457 has 8 divisors (see below), whose sum is σ = 33813120. Its totient is φ = 16764720.

The previous prime is 25253453. The next prime is 25253467. The reversal of 25253457 is 75435252.

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

It is not a de Polignac number, because 25253457 - 2² = 25253453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25253453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16894 + ... + 18327.

It is an arithmetic number, because the mean of its divisors is an integer number (4226640).

Almost surely, 2^25253457 is an apocalyptic number.

It is an amenable number.

25253457 is a deficient number, since it is larger than the sum of its proper divisors (8559663).

25253457 is a wasteful number, since it uses less digits than its factorization.

25253457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35463.

The product of its digits is 42000, while the sum is 33.

The square root of 25253457 is about 5025.2817831441. The cubic root of 25253457 is about 293.3866034739.

The spelling of 25253457 in words is "twenty-five million, two hundred fifty-three thousand, four hundred fifty-seven".