25081157 has 4 divisors (see below), whose sum is σ = 25398720. Its totient is φ = 24763596.

The previous prime is 25081151. The next prime is 25081163. The reversal of 25081157 is 75118052.

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 an interprime number because it is at equal distance from previous prime (25081151) and next prime (25081163).

It is a cyclic number.

It is not a de Polignac number, because 25081157 - 2⁸ = 25080901 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 (25081151) 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, 158663 + ... + 158820.

It is an arithmetic number, because the mean of its divisors is an integer number (6349680).

Almost surely, 2^25081157 is an apocalyptic number.

It is an amenable number.

25081157 is a deficient number, since it is larger than the sum of its proper divisors (317563).

25081157 is an equidigital number, since it uses as much as digits as its factorization.

25081157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317562.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 25081157 is about 5008.1091242105. The cubic root of 25081157 is about 292.7178380667.

The spelling of 25081157 in words is "twenty-five million, eighty-one thousand, one hundred fifty-seven".