16030557 has 6 divisors (see below), whose sum is σ = 23155262. Its totient is φ = 10687032.

The previous prime is 16030543. The next prime is 16030559. The reversal of 16030557 is 75503061.

16030557 is a `hidden beast` number, since 1 + 603 + 0 + 5 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15729156 + 301401 = 3966^2 + 549^2 .

It is not a de Polignac number, because 16030557 - 2⁶ = 16030493 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 16030557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16030559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 890578 + ... + 890595.

Almost surely, 2^16030557 is an apocalyptic number.

It is an amenable number.

16030557 is a deficient number, since it is larger than the sum of its proper divisors (7124705).

16030557 is a wasteful number, since it uses less digits than its factorization.

16030557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781179 (or 1781176 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 16030557 is about 4003.8178030475. The cubic root of 16030557 is about 252.1445221648.

The spelling of 16030557 in words is "sixteen million, thirty thousand, five hundred fifty-seven".