52778252 has 6 divisors (see below), whose sum is σ = 92361948. Its totient is φ = 26389124.

The previous prime is 52778239. The next prime is 52778267. The reversal of 52778252 is 25287725.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6597278 + ... + 6597285.

It is an arithmetic number, because the mean of its divisors is an integer number (15393658).

Almost surely, 2^52778252 is an apocalyptic number.

It is an amenable number.

52778252 is a deficient number, since it is larger than the sum of its proper divisors (39583696).

52778252 is a wasteful number, since it uses less digits than its factorization.

52778252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13194567 (or 13194565 counting only the distinct ones).

The product of its digits is 78400, while the sum is 38.

The square root of 52778252 is about 7264.8642107062. The cubic root of 52778252 is about 375.1039759088.

The spelling of 52778252 in words is "fifty-two million, seven hundred seventy-eight thousand, two hundred fifty-two".