25272457 has 4 divisors (see below), whose sum is σ = 28882816. Its totient is φ = 21662100.

The previous prime is 25272449. The next prime is 25272463. The reversal of 25272457 is 75427252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25272457 - 2³ = 25272449 is a prime.

It is a super-3 number, since 3×25272457³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25272407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1805169 + ... + 1805182.

It is an arithmetic number, because the mean of its divisors is an integer number (7220704).

Almost surely, 2^25272457 is an apocalyptic number.

It is an amenable number.

25272457 is a deficient number, since it is larger than the sum of its proper divisors (3610359).

25272457 is an equidigital number, since it uses as much as digits as its factorization.

25272457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610358.

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

The square root of 25272457 is about 5027.1718689538. The cubic root of 25272457 is about 293.4601636741.

It can be divided in two parts, 2527245 and 7, that added together give a palindrome (2527252).

The spelling of 25272457 in words is "twenty-five million, two hundred seventy-two thousand, four hundred fifty-seven".