16901825 has 12 divisors (see below), whose sum is σ = 22191660. Its totient is φ = 12725760.

The previous prime is 16901821. The next prime is 16901831. The reversal of 16901825 is 52810961.

It can be written as a sum of positive squares in 6 ways, for example, as 652864 + 16248961 = 808^2 + 4031^2 .

It is not a de Polignac number, because 16901825 - 2² = 16901821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16901791 and 16901800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16901821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19460 + ... + 20309.

It is an arithmetic number, because the mean of its divisors is an integer number (1849305).

Almost surely, 2^16901825 is an apocalyptic number.

It is an amenable number.

16901825 is a deficient number, since it is larger than the sum of its proper divisors (5289835).

16901825 is a wasteful number, since it uses less digits than its factorization.

16901825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39796 (or 39791 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 16901825 is about 4111.1829197933. The cubic root of 16901825 is about 256.6322314703.

The spelling of 16901825 in words is "sixteen million, nine hundred one thousand, eight hundred twenty-five".