52220993 has 8 divisors (see below), whose sum is σ = 57044736. Its totient is φ = 47410000.

The previous prime is 52220989. The next prime is 52220999. The reversal of 52220993 is 39902225.

It is a happy number.

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

It is not a de Polignac number, because 52220993 - 2² = 52220989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52220999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6743 + ... + 12243.

It is an arithmetic number, because the mean of its divisors is an integer number (7130592).

Almost surely, 2^52220993 is an apocalyptic number.

It is an amenable number.

52220993 is a deficient number, since it is larger than the sum of its proper divisors (4823743).

52220993 is a wasteful number, since it uses less digits than its factorization.

52220993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 52220993 is about 7226.4094127028. The cubic root of 52220993 is about 373.7791240639.

The spelling of 52220993 in words is "fifty-two million, two hundred twenty thousand, nine hundred ninety-three".