25214613 has 4 divisors (see below), whose sum is σ = 33619488. Its totient is φ = 16809740.

The previous prime is 25214593. The next prime is 25214617. The reversal of 25214613 is 31641252.

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 25214613 - 2¹⁸ = 24952469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25214617) 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, 4202433 + ... + 4202438.

It is an arithmetic number, because the mean of its divisors is an integer number (8404872).

Almost surely, 2^25214613 is an apocalyptic number.

It is an amenable number.

25214613 is a deficient number, since it is larger than the sum of its proper divisors (8404875).

25214613 is an equidigital number, since it uses as much as digits as its factorization.

25214613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404874.

The product of its digits is 1440, while the sum is 24.

The square root of 25214613 is about 5021.4154379019. The cubic root of 25214613 is about 293.2361005499.

Adding to 25214613 its reverse (31641252), we get a palindrome (56855865).

The spelling of 25214613 in words is "twenty-five million, two hundred fourteen thousand, six hundred thirteen".