52815822 has 8 divisors (see below), whose sum is σ = 105631656. Its totient is φ = 17605272.

The previous prime is 52815811. The next prime is 52815853. The reversal of 52815822 is 22851825.

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

52815822 is an admirable number.

It is a super-2 number, since 2×52815822² = 5579022107071368, which contains 22 as substring.

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, 4401313 + ... + 4401324.

It is an arithmetic number, because the mean of its divisors is an integer number (13203957).

Almost surely, 2^52815822 is an apocalyptic number.

52815822 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52815822 is a wasteful number, since it uses less digits than its factorization.

52815822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8802642.

The product of its digits is 12800, while the sum is 33.

The square root of 52815822 is about 7267.4494838286. The cubic root of 52815822 is about 375.1929602488.

The spelling of 52815822 in words is "fifty-two million, eight hundred fifteen thousand, eight hundred twenty-two".