25151131 has 4 divisors (see below), whose sum is σ = 25161192. Its totient is φ = 25141072.

The previous prime is 25151129. The next prime is 25151171. The reversal of 25151131 is 13115152.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25151131 - 2¹ = 25151129 is a prime.

It is a super-2 number, since 2×25151131² = 1265158781158322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25151099 and 25151108.

It is not an unprimeable number, because it can be changed into a prime (25151171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1935 + ... + 7351.

It is an arithmetic number, because the mean of its divisors is an integer number (6290298).

Almost surely, 2^25151131 is an apocalyptic number.

25151131 is a deficient number, since it is larger than the sum of its proper divisors (10061).

25151131 is an equidigital number, since it uses as much as digits as its factorization.

25151131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060.

The product of its digits is 150, while the sum is 19.

The square root of 25151131 is about 5015.0903281995. The cubic root of 25151131 is about 292.9898034480.

Adding to 25151131 its reverse (13115152), we get a palindrome (38266283).

The spelling of 25151131 in words is "twenty-five million, one hundred fifty-one thousand, one hundred thirty-one".