52215773 has 4 divisors (see below), whose sum is σ = 54486048. Its totient is φ = 49945500.

The previous prime is 52215763. The next prime is 52215799. The reversal of 52215773 is 37751225.

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 52215773 - 2²² = 48021469 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 (52215733) 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, 1135103 + ... + 1135148.

It is an arithmetic number, because the mean of its divisors is an integer number (13621512).

Almost surely, 2^52215773 is an apocalyptic number.

It is an amenable number.

52215773 is a deficient number, since it is larger than the sum of its proper divisors (2270275).

52215773 is a wasteful number, since it uses less digits than its factorization.

52215773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270274.

The product of its digits is 14700, while the sum is 32.

The square root of 52215773 is about 7226.0482284579. The cubic root of 52215773 is about 373.7666693534.

Adding to 52215773 its reverse (37751225), we get a palindrome (89966998).

The spelling of 52215773 in words is "fifty-two million, two hundred fifteen thousand, seven hundred seventy-three".