25232137 has 4 divisors (see below), whose sum is σ = 28836736. Its totient is φ = 21627540.

The previous prime is 25232093. The next prime is 25232147. The reversal of 25232137 is 73123252.

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 25232137 - 2¹¹ = 25230089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25232147) 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, 1802289 + ... + 1802302.

It is an arithmetic number, because the mean of its divisors is an integer number (7209184).

Almost surely, 2^25232137 is an apocalyptic number.

It is an amenable number.

25232137 is a deficient number, since it is larger than the sum of its proper divisors (3604599).

25232137 is an equidigital number, since it uses as much as digits as its factorization.

25232137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604598.

The product of its digits is 2520, while the sum is 25.

The square root of 25232137 is about 5023.1600611567. The cubic root of 25232137 is about 293.3040172435.

Adding to 25232137 its reverse (73123252), we get a palindrome (98355389).

The spelling of 25232137 in words is "twenty-five million, two hundred thirty-two thousand, one hundred thirty-seven".