53979657 has 16 divisors (see below), whose sum is σ = 74571840. Its totient is φ = 34707200.

The previous prime is 53979647. The next prime is 53979691. The reversal of 53979657 is 75697935.

53979657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 53979657 - 2⁶ = 53979593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53979647) 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, 8482 + ... + 13412.

It is an arithmetic number, because the mean of its divisors is an integer number (4660740).

Almost surely, 2^53979657 is an apocalyptic number.

It is an amenable number.

53979657 is a deficient number, since it is larger than the sum of its proper divisors (20592183).

53979657 is a wasteful number, since it uses less digits than its factorization.

53979657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5064.

The product of its digits is 1786050, while the sum is 51.

The square root of 53979657 is about 7347.0849321346. The cubic root of 53979657 is about 377.9288449812.

The spelling of 53979657 in words is "fifty-three million, nine hundred seventy-nine thousand, six hundred fifty-seven".