25905190 has 16 divisors (see below), whose sum is σ = 46773792. Its totient is φ = 10329984.

The previous prime is 25905169. The next prime is 25905197. The reversal of 25905190 is 9150952.

It is a super-2 number, since 2×25905190² = 1342157737872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25905197) 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, 474 + ... + 7213.

It is an arithmetic number, because the mean of its divisors is an integer number (2923362).

Almost surely, 2^25905190 is an apocalyptic number.

25905190 is a deficient number, since it is larger than the sum of its proper divisors (20868602).

25905190 is a wasteful number, since it uses less digits than its factorization.

25905190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8031.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 25905190 is about 5089.7141373558. The cubic root of 25905190 is about 295.8890730563.

The spelling of 25905190 in words is "twenty-five million, nine hundred five thousand, one hundred ninety".