16413555 has 8 divisors (see below), whose sum is σ = 26261712. Its totient is φ = 8753888.

The previous prime is 16413541. The next prime is 16413563. The reversal of 16413555 is 55531461.

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 16413555 - 2⁷ = 16413427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547104 + ... + 547133.

It is an arithmetic number, because the mean of its divisors is an integer number (3282714).

Almost surely, 2^16413555 is an apocalyptic number.

16413555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16413555 is a deficient number, since it is larger than the sum of its proper divisors (9848157).

16413555 is a wasteful number, since it uses less digits than its factorization.

16413555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094245.

The product of its digits is 9000, while the sum is 30.

The square root of 16413555 is about 4051.3645849269. The cubic root of 16413555 is about 254.1367967526.

Adding to 16413555 its sum of digits (30), we get a triangular number (16413585 = T₅₇₂₉).

The spelling of 16413555 in words is "sixteen million, four hundred thirteen thousand, five hundred fifty-five".