16325257 has 16 divisors (see below), whose sum is σ = 18239760. Its totient is φ = 14515200.

The previous prime is 16325233. The next prime is 16325269. The reversal of 16325257 is 75252361.

16325257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1301881 + 15023376 = 1141^2 + 3876^2 .

It is a cyclic number.

It is not a de Polignac number, because 16325257 - 2⁷ = 16325129 is a prime.

It is a super-2 number, since 2×16325257² = 533028032232098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16325207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57957 + ... + 58237.

It is an arithmetic number, because the mean of its divisors is an integer number (1139985).

Almost surely, 2^16325257 is an apocalyptic number.

It is an amenable number.

16325257 is a deficient number, since it is larger than the sum of its proper divisors (1914503).

16325257 is a wasteful number, since it uses less digits than its factorization.

16325257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444.

The product of its digits is 12600, while the sum is 31.

The square root of 16325257 is about 4040.4525736605. The cubic root of 16325257 is about 253.6802608710.

It can be divided in two parts, 1632 and 5257, that added together give a square (6889 = 83²).

The spelling of 16325257 in words is "sixteen million, three hundred twenty-five thousand, two hundred fifty-seven".