25189013 has 4 divisors (see below), whose sum is σ = 25774848. Its totient is φ = 24603180.

The previous prime is 25189001. The next prime is 25189027. The reversal of 25189013 is 31098152.

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 25189013 - 2⁴ = 25188997 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 (25189613) 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, 292853 + ... + 292938.

It is an arithmetic number, because the mean of its divisors is an integer number (6443712).

Almost surely, 2^25189013 is an apocalyptic number.

It is an amenable number.

25189013 is a deficient number, since it is larger than the sum of its proper divisors (585835).

25189013 is an equidigital number, since it uses as much as digits as its factorization.

25189013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585834.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 25189013 is about 5018.8657085043. The cubic root of 25189013 is about 293.1368276120.

The spelling of 25189013 in words is "twenty-five million, one hundred eighty-nine thousand, thirteen".