52220365 has 4 divisors (see below), whose sum is σ = 62664444. Its totient is φ = 41776288.

The previous prime is 52220359. The next prime is 52220383. The reversal of 52220365 is 56302225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26687556 + 25532809 = 5166^2 + 5053^2 .

It is a cyclic number.

It is not a de Polignac number, because 52220365 - 2¹⁷ = 52089293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5222032 + ... + 5222041.

It is an arithmetic number, because the mean of its divisors is an integer number (15666111).

Almost surely, 2^52220365 is an apocalyptic number.

It is an amenable number.

52220365 is a deficient number, since it is larger than the sum of its proper divisors (10444079).

52220365 is a wasteful number, since it uses less digits than its factorization.

52220365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10444078.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 52220365 is about 7226.3659608409. The cubic root of 52220365 is about 373.7776257250. Note that the first 3 decimals are identical.

The spelling of 52220365 in words is "fifty-two million, two hundred twenty thousand, three hundred sixty-five".