25030913 has 4 divisors (see below), whose sum is σ = 25347840. Its totient is φ = 24713988.

The previous prime is 25030909. The next prime is 25030921. The reversal of 25030913 is 31903052.

It is a happy number.

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 25030913 - 2² = 25030909 is a prime.

It is a super-2 number, since 2×25030913² = 1253093211227138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25030903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158345 + ... + 158502.

It is an arithmetic number, because the mean of its divisors is an integer number (6336960).

Almost surely, 2^25030913 is an apocalyptic number.

It is an amenable number.

25030913 is a deficient number, since it is larger than the sum of its proper divisors (316927).

25030913 is an equidigital number, since it uses as much as digits as its factorization.

25030913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316926.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 25030913 is about 5003.0903449768. The cubic root of 25030913 is about 292.5222443940.

Adding to 25030913 its reverse (31903052), we get a palindrome (56933965).

The spelling of 25030913 in words is "twenty-five million, thirty thousand, nine hundred thirteen".