25390190 has 16 divisors (see below), whose sum is σ = 52231392. Its totient is φ = 8705184.

The previous prime is 25390171. The next prime is 25390201. The reversal of 25390190 is 9109352.

It is a super-2 number, since 2×25390190² = 1289323496472200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181289 + ... + 181428.

It is an arithmetic number, because the mean of its divisors is an integer number (3264462).

Almost surely, 2^25390190 is an apocalyptic number.

25390190 is an abundant number, since it is smaller than the sum of its proper divisors (26841202).

25390190 is a wasteful number, since it uses less digits than its factorization.

25390190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362731.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 25390190 is about 5038.8679284141. The cubic root of 25390190 is about 293.9151574643.

The spelling of 25390190 in words is "twenty-five million, three hundred ninety thousand, one hundred ninety".