56938657 has 4 divisors (see below), whose sum is σ = 57461140. Its totient is φ = 56416176.

The previous prime is 56938633. The next prime is 56938669. The reversal of 56938657 is 75683965.

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 50708641 + 6230016 = 7121^2 + 2496^2 .

It is a cyclic number.

It is not a de Polignac number, because 56938657 - 2¹¹ = 56936609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56938657.

It is not an unprimeable number, because it can be changed into a prime (56938157) 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, 261078 + ... + 261295.

It is an arithmetic number, because the mean of its divisors is an integer number (14365285).

Almost surely, 2^56938657 is an apocalyptic number.

It is an amenable number.

56938657 is a deficient number, since it is larger than the sum of its proper divisors (522483).

56938657 is a wasteful number, since it uses less digits than its factorization.

56938657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522482.

The product of its digits is 1360800, while the sum is 49.

The square root of 56938657 is about 7545.7708022441. The cubic root of 56938657 is about 384.7120059088.

The spelling of 56938657 in words is "fifty-six million, nine hundred thirty-eight thousand, six hundred fifty-seven".