16425899 has 8 divisors (see below), whose sum is σ = 19760640. Its totient is φ = 13338216.

The previous prime is 16425881. The next prime is 16425907. The reversal of 16425899 is 99852461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16425899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16425839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61619 + ... + 61884.

It is an arithmetic number, because the mean of its divisors is an integer number (2470080).

Almost surely, 2^16425899 is an apocalyptic number.

16425899 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16425899 is a deficient number, since it is larger than the sum of its proper divisors (3334741).

16425899 is a wasteful number, since it uses less digits than its factorization.

16425899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123529.

The product of its digits is 155520, while the sum is 44.

The square root of 16425899 is about 4052.8877359236. The cubic root of 16425899 is about 254.2004896074.

The spelling of 16425899 in words is "sixteen million, four hundred twenty-five thousand, eight hundred ninety-nine".