253905091 has 8 divisors (see below), whose sum is σ = 277152768. Its totient is φ = 230685000.

The previous prime is 253905083. The next prime is 253905107. The reversal of 253905091 is 190509352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253905091 - 2³ = 253905083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253905031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15546 + ... + 27376.

It is an arithmetic number, because the mean of its divisors is an integer number (34644096).

Almost surely, 2^253905091 is an apocalyptic number.

253905091 is a deficient number, since it is larger than the sum of its proper divisors (23247677).

253905091 is a wasteful number, since it uses less digits than its factorization.

253905091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13793.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 253905091 is about 15934.3996121599. The cubic root of 253905091 is about 633.2236638975.

The spelling of 253905091 in words is "two hundred fifty-three million, nine hundred five thousand, ninety-one".