52818278 has 4 divisors (see below), whose sum is σ = 79227420. Its totient is φ = 26409138.

The previous prime is 52818257. The next prime is 52818287. The reversal of 52818278 is 87281825.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 13204568 + ... + 13204571.

It is an arithmetic number, because the mean of its divisors is an integer number (19806855).

Almost surely, 2^52818278 is an apocalyptic number.

52818278 is a deficient number, since it is larger than the sum of its proper divisors (26409142).

52818278 is a wasteful number, since it uses less digits than its factorization.

52818278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26409141.

The product of its digits is 71680, while the sum is 41.

The square root of 52818278 is about 7267.6184544870. The cubic root of 52818278 is about 375.1987758017.

The spelling of 52818278 in words is "fifty-two million, eight hundred eighteen thousand, two hundred seventy-eight".