25390613 has 8 divisors (see below), whose sum is σ = 25855200. Its totient is φ = 24929968.

The previous prime is 25390601. The next prime is 25390627. The reversal of 25390613 is 31609352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25390613 - 2⁶ = 25390549 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 (25390663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14003 + ... + 15711.

It is an arithmetic number, because the mean of its divisors is an integer number (3231900).

Almost surely, 2^25390613 is an apocalyptic number.

It is an amenable number.

25390613 is a deficient number, since it is larger than the sum of its proper divisors (464587).

25390613 is a wasteful number, since it uses less digits than its factorization.

25390613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 25390613 is about 5038.9099019530. The cubic root of 25390613 is about 293.9167896619.

Adding to 25390613 its reverse (31609352), we get a palindrome (56999965).

The spelling of 25390613 in words is "twenty-five million, three hundred ninety thousand, six hundred thirteen".