16013825 has 12 divisors (see below), whose sum is σ = 20498688. Its totient is φ = 12397200.

The previous prime is 16013801. The next prime is 16013831. The reversal of 16013825 is 52831061.

It is not a de Polignac number, because 16013825 - 2¹² = 16009729 is a prime.

It is a super-2 number, since 2×16013825² = 512885182261250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16013794 and 16013803.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9557 + ... + 11106.

It is an arithmetic number, because the mean of its divisors is an integer number (1708224).

Almost surely, 2^16013825 is an apocalyptic number.

It is an amenable number.

16013825 is a deficient number, since it is larger than the sum of its proper divisors (4484863).

16013825 is a wasteful number, since it uses less digits than its factorization.

16013825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20704 (or 20699 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 16013825 is about 4001.7277518592. The cubic root of 16013825 is about 252.0567657875.

Adding to 16013825 its reverse (52831061), we get a palindrome (68844886).

The spelling of 16013825 in words is "sixteen million, thirteen thousand, eight hundred twenty-five".