53015777 has 4 divisors (see below), whose sum is σ = 53149716. Its totient is φ = 52881840.

The previous prime is 53015773. The next prime is 53015801. The reversal of 53015777 is 77751035.

53015777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30129121 + 22886656 = 5489^2 + 4784^2 .

It is a cyclic number.

It is not a de Polignac number, because 53015777 - 2² = 53015773 is a prime.

It is a super-2 number, since 2×53015777² = 5621345221827458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53015773) 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 3 ways as a sum of consecutive naturals, for example, 66374 + ... + 67167.

It is an arithmetic number, because the mean of its divisors is an integer number (13287429).

Almost surely, 2^53015777 is an apocalyptic number.

It is an amenable number.

53015777 is a deficient number, since it is larger than the sum of its proper divisors (133939).

53015777 is a wasteful number, since it uses less digits than its factorization.

53015777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133938.

The product of its (nonzero) digits is 25725, while the sum is 35.

The square root of 53015777 is about 7281.1933774622. The cubic root of 53015777 is about 375.6658440013.

The spelling of 53015777 in words is "fifty-three million, fifteen thousand, seven hundred seventy-seven".