25900490 has 32 divisors (see below), whose sum is σ = 58126464. Its totient is φ = 8072640.

The previous prime is 25900489. The next prime is 25900493. The reversal of 25900490 is 9400952.

It is not an unprimeable number, because it can be changed into a prime (25900493) 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 15 ways as a sum of consecutive naturals, for example, 16049 + ... + 17588.

It is an arithmetic number, because the mean of its divisors is an integer number (1816452).

Almost surely, 2^25900490 is an apocalyptic number.

25900490 is an abundant number, since it is smaller than the sum of its proper divisors (32225974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25900490 is a wasteful number, since it uses less digits than its factorization.

25900490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33662.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 25900490 is about 5089.2524008935. The cubic root of 25900490 is about 295.8711775078.

The spelling of 25900490 in words is "twenty-five million, nine hundred thousand, four hundred ninety".