253809023 has 8 divisors (see below), whose sum is σ = 273774816. Its totient is φ = 233906400.

The previous prime is 253809019. The next prime is 253809037. The reversal of 253809023 is 320908352.

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

It is not a de Polignac number, because 253809023 - 2² = 253809019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253809053) 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, 7268 + ... + 23673.

It is an arithmetic number, because the mean of its divisors is an integer number (34221852).

Almost surely, 2^253809023 is an apocalyptic number.

253809023 is a deficient number, since it is larger than the sum of its proper divisors (19965793).

253809023 is a wasteful number, since it uses less digits than its factorization.

253809023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31585.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 253809023 is about 15931.3848425051. The cubic root of 253809023 is about 633.1437912641.

The spelling of 253809023 in words is "two hundred fifty-three million, eight hundred nine thousand, twenty-three".