25530190 has 16 divisors (see below), whose sum is σ = 52519392. Its totient is φ = 8753184.

The previous prime is 25530187. The next prime is 25530191. The reversal of 25530190 is 9103552.

It is a super-2 number, since 2×25530190² = 1303581202872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530191) 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 7 ways as a sum of consecutive naturals, for example, 182289 + ... + 182428.

It is an arithmetic number, because the mean of its divisors is an integer number (3282462).

Almost surely, 2^25530190 is an apocalyptic number.

25530190 is an abundant number, since it is smaller than the sum of its proper divisors (26989202).

25530190 is a wasteful number, since it uses less digits than its factorization.

25530190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364731.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 25530190 is about 5052.7408403756. The cubic root of 25530190 is about 294.4543778409.

The spelling of 25530190 in words is "twenty-five million, five hundred thirty thousand, one hundred ninety".