52992818 has 8 divisors (see below), whose sum is σ = 79928940. Its totient is φ = 26349840.

The previous prime is 52992811. The next prime is 52992827. The reversal of 52992818 is 81829925.

It can be written as a sum of positive squares in 2 ways, for example, as 48121969 + 4870849 = 6937^2 + 2207^2 .

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

It is a super-2 number, since 2×52992818² = 5616477519162248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52992811) 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, 72833 + ... + 73556.

Almost surely, 2^52992818 is an apocalyptic number.

52992818 is a deficient number, since it is larger than the sum of its proper divisors (26936122).

52992818 is a wasteful number, since it uses less digits than its factorization.

52992818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146572.

The product of its digits is 103680, while the sum is 44.

The square root of 52992818 is about 7279.6166107838. The cubic root of 52992818 is about 375.6116075838.

The spelling of 52992818 in words is "fifty-two million, nine hundred ninety-two thousand, eight hundred eighteen".