25232131 has 4 divisors (see below), whose sum is σ = 26716392. Its totient is φ = 23747872.

The previous prime is 25232093. The next prime is 25232147. The reversal of 25232131 is 13123252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25232131 - 2¹¹ = 25230083 is a prime.

It is a super-2 number, since 2×25232131² = 1273320869602322, 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 = 25232099 and 25232108.

It is not an unprimeable number, because it can be changed into a prime (25232161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742105 + ... + 742138.

It is an arithmetic number, because the mean of its divisors is an integer number (6679098).

Almost surely, 2^25232131 is an apocalyptic number.

25232131 is a deficient number, since it is larger than the sum of its proper divisors (1484261).

25232131 is a wasteful number, since it uses less digits than its factorization.

25232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484260.

The product of its digits is 360, while the sum is 19.

The square root of 25232131 is about 5023.1594639231. The cubic root of 25232131 is about 293.3039939951.

Adding to 25232131 its reverse (13123252), we get a palindrome (38355383).

The spelling of 25232131 in words is "twenty-five million, two hundred thirty-two thousand, one hundred thirty-one".