52777222149 has 4 divisors (see below), whose sum is σ = 70369629536. Its totient is φ = 35184814764.

The previous prime is 52777222129. The next prime is 52777222163. The reversal of 52777222149 is 94122277725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-52777222149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52777222098 and 52777222107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52777222129) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 8796203689 + ... + 8796203694.

It is an arithmetic number, because the mean of its divisors is an integer number (17592407384).

Almost surely, 2^52777222149 is an apocalyptic number.

It is an amenable number.

52777222149 is a deficient number, since it is larger than the sum of its proper divisors (17592407387).

52777222149 is a wasteful number, since it uses less digits than its factorization.

52777222149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17592407386.

The product of its digits is 987840, while the sum is 48.

The spelling of 52777222149 in words is "fifty-two billion, seven hundred seventy-seven million, two hundred twenty-two thousand, one hundred forty-nine".