254895990 has 16 divisors (see below), whose sum is σ = 611750448. Its totient is φ = 67972256.

The previous prime is 254895973. The next prime is 254896009. The reversal of 254895990 is 99598452.

It is a Curzon 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, 4248237 + ... + 4248296.

It is an arithmetic number, because the mean of its divisors is an integer number (38234403).

Almost surely, 2^254895990 is an apocalyptic number.

254895990 is an abundant number, since it is smaller than the sum of its proper divisors (356854458).

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

254895990 is a wasteful number, since it uses less digits than its factorization.

254895990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8496543.

The product of its (nonzero) digits is 1166400, while the sum is 51.

The square root of 254895990 is about 15965.4624110923. The cubic root of 254895990 is about 634.0463416520.

The spelling of 254895990 in words is "two hundred fifty-four million, eight hundred ninety-five thousand, nine hundred ninety".