52822621 has 8 divisors (see below), whose sum is σ = 56166264. Its totient is φ = 49505280.

The previous prime is 52822613. The next prime is 52822631. The reversal of 52822621 is 12622825.

It can be written as a sum of positive squares in 4 ways, for example, as 23174596 + 29648025 = 4814^2 + 5445^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 52822621 - 2³ = 52822613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52822621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52822631) 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, 2350 + ... + 10543.

It is an arithmetic number, because the mean of its divisors is an integer number (7020783).

Almost surely, 2^52822621 is an apocalyptic number.

It is an amenable number.

52822621 is a deficient number, since it is larger than the sum of its proper divisors (3343643).

52822621 is a wasteful number, since it uses less digits than its factorization.

52822621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13151.

The product of its digits is 3840, while the sum is 28.

The square root of 52822621 is about 7267.9172394848. The cubic root of 52822621 is about 375.2090591335.

The spelling of 52822621 in words is "fifty-two million, eight hundred twenty-two thousand, six hundred twenty-one".