16957057 has 4 divisors (see below), whose sum is σ = 18261460. Its totient is φ = 15652656.

The previous prime is 16957051. The next prime is 16957069. The reversal of 16957057 is 75075961.

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 11532816 + 5424241 = 3396^2 + 2329^2 .

It is a cyclic number.

It is not a de Polignac number, because 16957057 - 2¹⁵ = 16924289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16957051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652182 + ... + 652207.

It is an arithmetic number, because the mean of its divisors is an integer number (4565365).

Almost surely, 2^16957057 is an apocalyptic number.

It is an amenable number.

16957057 is a deficient number, since it is larger than the sum of its proper divisors (1304403).

16957057 is a wasteful number, since it uses less digits than its factorization.

16957057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304402.

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 16957057 is about 4117.8947291061. The cubic root of 16957057 is about 256.9114695548.

The spelling of 16957057 in words is "sixteen million, nine hundred fifty-seven thousand, fifty-seven".