25190361 has 27 divisors (see below), whose sum is σ = 42504501. Its totient is φ = 14334264.

The previous prime is 25190353. The next prime is 25190393. The reversal of 25190361 is 16309152.

The square root of 25190361 is 5019.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 25190361 - 2³ = 25190353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25190461) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 105280 + ... + 105518.

Almost surely, 2^25190361 is an apocalyptic number.

25190361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25190361 is the 5019-th square number.

25190361 is the 2510-th centered octagonal number.

It is an amenable number.

25190361 is a deficient number, since it is larger than the sum of its proper divisors (17314140).

25190361 is an equidigital number, since it uses as much as digits as its factorization.

25190361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The cubic root of 25190361 is about 293.1420566298.

The spelling of 25190361 in words is "twenty-five million, one hundred ninety thousand, three hundred sixty-one".