16504545 has 8 divisors (see below), whose sum is σ = 26407296. Its totient is φ = 8802416.

The previous prime is 16504541. The next prime is 16504549. The reversal of 16504545 is 54540561.

It is an interprime number because it is at equal distance from previous prime (16504541) and next prime (16504549).

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

It is a cyclic number.

It is not a de Polignac number, because 16504545 - 2² = 16504541 is a prime.

16504545 is a modest number, since divided by 4545 gives 1650 as remainder.

It is not an unprimeable number, because it can be changed into a prime (16504541) 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, 550137 + ... + 550166.

It is an arithmetic number, because the mean of its divisors is an integer number (3300912).

Almost surely, 2^16504545 is an apocalyptic number.

16504545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16504545 is a deficient number, since it is larger than the sum of its proper divisors (9902751).

16504545 is a wasteful number, since it uses less digits than its factorization.

16504545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100311.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 16504545 is about 4062.5786146240. The cubic root of 16504545 is about 254.6055416089.

The spelling of 16504545 in words is "sixteen million, five hundred four thousand, five hundred forty-five".