16554457 has 8 divisors (see below), whose sum is σ = 17375040. Its totient is φ = 15742320.

The previous prime is 16554449. The next prime is 16554511. The reversal of 16554457 is 75445561.

It is a happy number.

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 16554457 - 2³ = 16554449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16554407) 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, 2107 + ... + 6127.

It is an arithmetic number, because the mean of its divisors is an integer number (2171880).

Almost surely, 2^16554457 is an apocalyptic number.

It is an amenable number.

16554457 is a deficient number, since it is larger than the sum of its proper divisors (820583).

16554457 is a wasteful number, since it uses less digits than its factorization.

16554457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223.

The product of its digits is 84000, while the sum is 37.

The square root of 16554457 is about 4068.7168739051. The cubic root of 16554457 is about 254.8619373099.

The spelling of 16554457 in words is "sixteen million, five hundred fifty-four thousand, four hundred fifty-seven".