25740090 has 24 divisors (see below), whose sum is σ = 66924468. Its totient is φ = 6864000.

The previous prime is 25740089. The next prime is 25740097. The reversal of 25740090 is 9004752.

25740090 is a `hidden beast` number, since 2 + 574 + 0 + 0 + 90 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25735329 + 4761 = 5073^2 + 69^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25740097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142911 + ... + 143090.

Almost surely, 2^25740090 is an apocalyptic number.

25740090 is an abundant number, since it is smaller than the sum of its proper divisors (41184378).

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

25740090 is a wasteful number, since it uses less digits than its factorization.

25740090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286014 (or 286011 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 25740090 is about 5073.4692272645. The cubic root of 25740090 is about 295.2591422032.

The spelling of 25740090 in words is "twenty-five million, seven hundred forty thousand, ninety".