25538319 has 12 divisors (see below), whose sum is σ = 37171992. Its totient is φ = 16894800.

The previous prime is 25538297. The next prime is 25538329. The reversal of 25538319 is 91383552.

It is not a de Polignac number, because 25538319 - 2⁵ = 25538287 is a prime.

It is a super-2 number, since 2×25538319² = 1304411474691522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25538329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9652 + ... + 12009.

It is an arithmetic number, because the mean of its divisors is an integer number (3097666).

Almost surely, 2^25538319 is an apocalyptic number.

25538319 is a deficient number, since it is larger than the sum of its proper divisors (11633673).

25538319 is a wasteful number, since it uses less digits than its factorization.

25538319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21798 (or 21795 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 25538319 is about 5053.5451912494. The cubic root of 25538319 is about 294.4856266700.

The spelling of 25538319 in words is "twenty-five million, five hundred thirty-eight thousand, three hundred nineteen".