53077665 has 16 divisors (see below), whose sum is σ = 85176000. Its totient is φ = 28224192.

The previous prime is 53077631. The next prime is 53077667. The reversal of 53077665 is 56677035.

53077665 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 53077665 - 2²² = 48883361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53077667) 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, 166 + ... + 10304.

It is an arithmetic number, because the mean of its divisors is an integer number (5323500).

Almost surely, 2^53077665 is an apocalyptic number.

It is an amenable number.

53077665 is a deficient number, since it is larger than the sum of its proper divisors (32098335).

53077665 is a wasteful number, since it uses less digits than its factorization.

53077665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10496.

The product of its (nonzero) digits is 132300, while the sum is 39.

The square root of 53077665 is about 7285.4419907100. The cubic root of 53077665 is about 375.8119650761.

The spelling of 53077665 in words is "fifty-three million, seventy-seven thousand, six hundred sixty-five".