25232507 has 4 divisors (see below), whose sum is σ = 25847976. Its totient is φ = 24617040.

The previous prime is 25232503. The next prime is 25232509. The reversal of 25232507 is 70523252.

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 25232507 - 2² = 25232503 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25232503) 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, 307673 + ... + 307754.

It is an arithmetic number, because the mean of its divisors is an integer number (6461994).

Almost surely, 2^25232507 is an apocalyptic number.

25232507 is a deficient number, since it is larger than the sum of its proper divisors (615469).

25232507 is an equidigital number, since it uses as much as digits as its factorization.

25232507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615468.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 25232507 is about 5023.1968904274. The cubic root of 25232507 is about 293.3054508908.

Adding to 25232507 its reverse (70523252), we get a palindrome (95755759).

The spelling of 25232507 in words is "twenty-five million, two hundred thirty-two thousand, five hundred seven".