52777222155 has 48 divisors (see below), whose sum is σ = 104565539520. Its totient is φ = 24122951424.

The previous prime is 52777222129. The next prime is 52777222163. The reversal of 52777222155 is 55122277725.

It is a happy number.

52777222155 is a `hidden beast` number, since 5 + 277 + 7 + 222 + 155 = 666.

It is not a de Polignac number, because 52777222155 - 2⁵ = 52777222123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 52777222155.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3448861 + ... + 3464129.

It is an arithmetic number, because the mean of its divisors is an integer number (2178448740).

Almost surely, 2^52777222155 is an apocalyptic number.

52777222155 is a deficient number, since it is larger than the sum of its proper divisors (51788317365).

52777222155 is a wasteful number, since it uses less digits than its factorization.

52777222155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26260 (or 26257 counting only the distinct ones).

The product of its digits is 686000, while the sum is 45.

The spelling of 52777222155 in words is "fifty-two billion, seven hundred seventy-seven million, two hundred twenty-two thousand, one hundred fifty-five".