331664053 has 4 divisors (see below), whose sum is σ = 379044640. Its totient is φ = 284283468.

The previous prime is 331664027. The next prime is 331664063. The reversal of 331664053 is 350466133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 331664053 - 2²¹ = 329566901 is a prime.

It is a super-2 number, since 2×331664053² = 220002088104773618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331664063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23690283 + ... + 23690296.

It is an arithmetic number, because the mean of its divisors is an integer number (94761160).

Almost surely, 2^331664053 is an apocalyptic number.

It is an amenable number.

331664053 is a deficient number, since it is larger than the sum of its proper divisors (47380587).

331664053 is an equidigital number, since it uses as much as digits as its factorization.

331664053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47380586.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 331664053 is about 18211.6460815600. The cubic root of 331664053 is about 692.2019225692.

The spelling of 331664053 in words is "three hundred thirty-one million, six hundred sixty-four thousand, fifty-three".