16551055 has 8 divisors (see below), whose sum is σ = 20502144. Its totient is φ = 12813600.

The previous prime is 16551049. The next prime is 16551061. The reversal of 16551055 is 55015561.

It is an interprime number because it is at equal distance from previous prime (16551049) and next prime (16551061).

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

It is not a de Polignac number, because 16551055 - 2⁷ = 16550927 is a prime.

It is a super-2 number, since 2×16551055² = 547874843226050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 53236 + ... + 53545.

It is an arithmetic number, because the mean of its divisors is an integer number (2562768).

Almost surely, 2^16551055 is an apocalyptic number.

16551055 is a deficient number, since it is larger than the sum of its proper divisors (3951089).

16551055 is a wasteful number, since it uses less digits than its factorization.

16551055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106817.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 16551055 is about 4068.2987845044. The cubic root of 16551055 is about 254.8444777679.

The spelling of 16551055 in words is "sixteen million, five hundred fifty-one thousand, fifty-five".