16880513 has 8 divisors (see below), whose sum is σ = 18247656. Its totient is φ = 15523200.

The previous prime is 16880491. The next prime is 16880533. The reversal of 16880513 is 31508861.

It can be written as a sum of positive squares in 4 ways, for example, as 824464 + 16056049 = 908^2 + 4007^2 .

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-16880513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16880513.

It is not an unprimeable number, because it can be changed into a prime (16880533) 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, 1343 + ... + 5963.

It is an arithmetic number, because the mean of its divisors is an integer number (2280957).

Almost surely, 2^16880513 is an apocalyptic number.

16880513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16880513 is a deficient number, since it is larger than the sum of its proper divisors (1367143).

16880513 is a wasteful number, since it uses less digits than its factorization.

16880513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 16880513 is about 4108.5901474837. The cubic root of 16880513 is about 256.5243211007.

It can be divided in two parts, 1688051 and 3, that multiplied together give a triangular number (5064153 = T₃₁₈₂).

The spelling of 16880513 in words is "sixteen million, eight hundred eighty thousand, five hundred thirteen".