25131703 has 4 divisors (see below), whose sum is σ = 25162920. Its totient is φ = 25100488.

The previous prime is 25131697. The next prime is 25131707. The reversal of 25131703 is 30713152.

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 25131703 - 2⁵ = 25131671 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 (25131707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14368 + ... + 16021.

It is an arithmetic number, because the mean of its divisors is an integer number (6290730).

Almost surely, 2^25131703 is an apocalyptic number.

25131703 is a deficient number, since it is larger than the sum of its proper divisors (31217).

25131703 is an equidigital number, since it uses as much as digits as its factorization.

25131703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31216.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 25131703 is about 5013.1529998595. The cubic root of 25131703 is about 292.9143439894.

Adding to 25131703 its reverse (30713152), we get a palindrome (55844855).

The spelling of 25131703 in words is "twenty-five million, one hundred thirty-one thousand, seven hundred three".