16253992 has 8 divisors (see below), whose sum is σ = 30476250. Its totient is φ = 8126992.

The previous prime is 16253983. The next prime is 16254001. The reversal of 16253992 is 29935261.

It is an interprime number because it is at equal distance from previous prime (16253983) and next prime (16254001).

It can be written as a sum of positive squares in only one way, i.e., 9771876 + 6482116 = 3126^2 + 2546^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015867 + ... + 1015882.

Almost surely, 2^16253992 is an apocalyptic number.

It is an amenable number.

16253992 is a deficient number, since it is larger than the sum of its proper divisors (14222258).

16253992 is a wasteful number, since it uses less digits than its factorization.

16253992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031755 (or 2031751 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 16253992 is about 4031.6239904039. The cubic root of 16253992 is about 253.3105904483.

The spelling of 16253992 in words is "sixteen million, two hundred fifty-three thousand, nine hundred ninety-two".