253905090 has 32 divisors (see below), whose sum is σ = 609897600. Its totient is φ = 67649664.

The previous prime is 253905083. The next prime is 253905107. The reversal of 253905090 is 90509352.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40486 + ... + 46334.

It is an arithmetic number, because the mean of its divisors is an integer number (19059300).

Almost surely, 2^253905090 is an apocalyptic number.

253905090 is an abundant number, since it is smaller than the sum of its proper divisors (355992510).

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

253905090 is a wasteful number, since it uses less digits than its factorization.

253905090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7306.

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 253905090 is about 15934.3995807812. The cubic root of 253905090 is about 633.2236630662.

The spelling of 253905090 in words is "two hundred fifty-three million, nine hundred five thousand, ninety".