25135990 has 16 divisors (see below), whose sum is σ = 49358160. Its totient is φ = 9140320.

The previous prime is 25135973. The next prime is 25136029. The reversal of 25135990 is 9953152.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114145 + ... + 114364.

It is an arithmetic number, because the mean of its divisors is an integer number (3084885).

Almost surely, 2^25135990 is an apocalyptic number.

25135990 is a deficient number, since it is larger than the sum of its proper divisors (24222170).

25135990 is a wasteful number, since it uses less digits than its factorization.

25135990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228527.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 25135990 is about 5013.5805568476. The cubic root of 25135990 is about 292.9309982846.

The spelling of 25135990 in words is "twenty-five million, one hundred thirty-five thousand, nine hundred ninety".