52817918 has 4 divisors (see below), whose sum is σ = 79226880. Its totient is φ = 26408958.

The previous prime is 52817879. The next prime is 52817923. The reversal of 52817918 is 81971825.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13204478 + ... + 13204481.

It is an arithmetic number, because the mean of its divisors is an integer number (19806720).

Almost surely, 2^52817918 is an apocalyptic number.

52817918 is a deficient number, since it is larger than the sum of its proper divisors (26408962).

52817918 is a wasteful number, since it uses less digits than its factorization.

52817918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26408961.

The product of its digits is 40320, while the sum is 41.

The square root of 52817918 is about 7267.5936870466. The cubic root of 52817918 is about 375.1979233704.

It can be divided in two parts, 52817 and 918, that added together give a palindrome (53735).

The spelling of 52817918 in words is "fifty-two million, eight hundred seventeen thousand, nine hundred eighteen".