53277777 has 16 divisors (see below), whose sum is σ = 90206080. Its totient is φ = 30444336.

The previous prime is 53277769. The next prime is 53277839. The reversal of 53277777 is 77777235.

53277777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53277777 - 2³ = 53277769 is a prime.

It is a Duffinian number.

53277777 is a modest number, since divided by 7777 gives 5327 as remainder.

It is not an unprimeable number, because it can be changed into a prime (53277277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140758 + ... + 141135.

It is an arithmetic number, because the mean of its divisors is an integer number (5637880).

Almost surely, 2^53277777 is an apocalyptic number.

It is an amenable number.

53277777 is a deficient number, since it is larger than the sum of its proper divisors (36928303).

53277777 is a wasteful number, since it uses less digits than its factorization.

53277777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281909 (or 281903 counting only the distinct ones).

The product of its digits is 504210, while the sum is 45.

The square root of 53277777 is about 7299.1627602075. The cubic root of 53277777 is about 376.2836648649.

The spelling of 53277777 in words is "fifty-three million, two hundred seventy-seven thousand, seven hundred seventy-seven".