25225013 has 4 divisors (see below), whose sum is σ = 27518208. Its totient is φ = 22931820.

The previous prime is 25225007. The next prime is 25225019. The reversal of 25225013 is 31052252.

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 an interprime number because it is at equal distance from previous prime (25225007) and next prime (25225019).

It is a cyclic number.

It is not a de Polignac number, because 25225013 - 2⁸ = 25224757 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 (25225019) 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, 1146581 + ... + 1146602.

It is an arithmetic number, because the mean of its divisors is an integer number (6879552).

Almost surely, 2^25225013 is an apocalyptic number.

It is an amenable number.

25225013 is a deficient number, since it is larger than the sum of its proper divisors (2293195).

25225013 is a wasteful number, since it uses less digits than its factorization.

25225013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293194.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25225013 is about 5022.4508957281. The cubic root of 25225013 is about 293.2764109876.

Adding to 25225013 its reverse (31052252), we get a palindrome (56277265).

The spelling of 25225013 in words is "twenty-five million, two hundred twenty-five thousand, thirteen".