25287590 has 16 divisors (see below), whose sum is σ = 45671472. Its totient is φ = 10080864.

The previous prime is 25287589. The next prime is 25287593. The reversal of 25287590 is 9578252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25287593) 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, 1049 + ... + 7188.

It is an arithmetic number, because the mean of its divisors is an integer number (2854467).

Almost surely, 2^25287590 is an apocalyptic number.

25287590 is a deficient number, since it is larger than the sum of its proper divisors (20383882).

25287590 is a wasteful number, since it uses less digits than its factorization.

25287590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 25287590 is about 5028.6767643188. The cubic root of 25287590 is about 293.5187260654.

The spelling of 25287590 in words is "twenty-five million, two hundred eighty-seven thousand, five hundred ninety".