52777220 has 24 divisors (see below), whose sum is σ = 110968704. Its totient is φ = 21084896.

The previous prime is 52777199. The next prime is 52777229. The reversal of 52777220 is 2277725.

It is not an unprimeable number, because it can be changed into a prime (52777229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30827 + ... + 32493.

It is an arithmetic number, because the mean of its divisors is an integer number (4623696).

Almost surely, 2^52777220 is an apocalyptic number.

It is an amenable number.

52777220 is an abundant number, since it is smaller than the sum of its proper divisors (58191484).

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

52777220 is a wasteful number, since it uses less digits than its factorization.

52777220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 52777220 is about 7264.7931835669. The cubic root of 52777220 is about 375.1015310266.

The spelling of 52777220 in words is "fifty-two million, seven hundred seventy-seven thousand, two hundred twenty".