52344821 has 4 divisors (see below), whose sum is σ = 53082144. Its totient is φ = 51607500.

The previous prime is 52344781. The next prime is 52344839. The reversal of 52344821 is 12844325.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-52344821 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 (52344521) 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, 368555 + ... + 368696.

It is an arithmetic number, because the mean of its divisors is an integer number (13270536).

Almost surely, 2^52344821 is an apocalyptic number.

It is an amenable number.

52344821 is a deficient number, since it is larger than the sum of its proper divisors (737323).

52344821 is an equidigital number, since it uses as much as digits as its factorization.

52344821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737322.

The product of its digits is 7680, while the sum is 29.

The square root of 52344821 is about 7234.9720801120. The cubic root of 52344821 is about 374.0743296459.

The spelling of 52344821 in words is "fifty-two million, three hundred forty-four thousand, eight hundred twenty-one".