25732157 has 4 divisors (see below), whose sum is σ = 28071456. Its totient is φ = 23392860.

The previous prime is 25732141. The next prime is 25732159. The reversal of 25732157 is 75123752.

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 25732157 - 2⁴ = 25732141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25732159) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1169633 + ... + 1169654.

It is an arithmetic number, because the mean of its divisors is an integer number (7017864).

Almost surely, 2^25732157 is an apocalyptic number.

It is an amenable number.

25732157 is a deficient number, since it is larger than the sum of its proper divisors (2339299).

25732157 is a wasteful number, since it uses less digits than its factorization.

25732157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339298.

The product of its digits is 14700, while the sum is 32.

The square root of 25732157 is about 5072.6873548446. The cubic root of 25732157 is about 295.2288064967.

The spelling of 25732157 in words is "twenty-five million, seven hundred thirty-two thousand, one hundred fifty-seven".