253475994 has 8 divisors (see below), whose sum is σ = 506952000. Its totient is φ = 84491996.

The previous prime is 253475983. The next prime is 253476019. The reversal of 253475994 is 499574352.

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

253475994 is an admirable number.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 21122994 + ... + 21123005.

It is an arithmetic number, because the mean of its divisors is an integer number (63369000).

Almost surely, 2^253475994 is an apocalyptic number.

253475994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

253475994 is a wasteful number, since it uses less digits than its factorization.

253475994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42246004.

The product of its digits is 1360800, while the sum is 48.

The square root of 253475994 is about 15920.9294326682. The cubic root of 253475994 is about 632.8667489283.

The spelling of 253475994 in words is "two hundred fifty-three million, four hundred seventy-five thousand, nine hundred ninety-four".