657497053 has 8 divisors (see below), whose sum is σ = 675376128. Its totient is φ = 639780144.

The previous prime is 657497041. The next prime is 657497059. The reversal of 657497053 is 350794756.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 657497053 - 2¹⁷ = 657365981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 657496994 and 657497012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657497059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32301 + ... + 48562.

It is an arithmetic number, because the mean of its divisors is an integer number (84422016).

Almost surely, 2^657497053 is an apocalyptic number.

It is an amenable number.

657497053 is a deficient number, since it is larger than the sum of its proper divisors (17879075).

657497053 is a wasteful number, since it uses less digits than its factorization.

657497053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81083.

The product of its (nonzero) digits is 793800, while the sum is 46.

The square root of 657497053 is about 25641.7053450039. The cubic root of 657497053 is about 869.5567623762.

The spelling of 657497053 in words is "six hundred fifty-seven million, four hundred ninety-seven thousand, fifty-three".