52303721 has 4 divisors (see below), whose sum is σ = 52417152. Its totient is φ = 52190292.

The previous prime is 52303717. The next prime is 52303793. The reversal of 52303721 is 12730325.

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 a cyclic number.

It is not a de Polignac number, because 52303721 - 2² = 52303717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52303021) 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, 56021 + ... + 56946.

It is an arithmetic number, because the mean of its divisors is an integer number (13104288).

Almost surely, 2^52303721 is an apocalyptic number.

It is an amenable number.

52303721 is a deficient number, since it is larger than the sum of its proper divisors (113431).

52303721 is a wasteful number, since it uses less digits than its factorization.

52303721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113430.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 52303721 is about 7232.1311520187. The cubic root of 52303721 is about 373.9763990369.

The spelling of 52303721 in words is "fifty-two million, three hundred three thousand, seven hundred twenty-one".