16056457 has 2 divisors, whose sum is σ = 16056458. Its totient is φ = 16056456.

The previous prime is 16056451. The next prime is 16056473. The reversal of 16056457 is 75465061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14258176 + 1798281 = 3776^2 + 1341^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16056457 is a prime.

It is a super-2 number, since 2×16056457² = 515619622785698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16056451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8028228 + 8028229.

It is an arithmetic number, because the mean of its divisors is an integer number (8028229).

Almost surely, 2^16056457 is an apocalyptic number.

It is an amenable number.

16056457 is a deficient number, since it is larger than the sum of its proper divisors (1).

16056457 is an equidigital number, since it uses as much as digits as its factorization.

16056457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 16056457 is about 4007.0509105825. The cubic root of 16056457 is about 252.2802427395.

The spelling of 16056457 in words is "sixteen million, fifty-six thousand, four hundred fifty-seven".