16553801 has 8 divisors (see below), whose sum is σ = 19121184. Its totient is φ = 14163520.

The previous prime is 16553773. The next prime is 16553819. The reversal of 16553801 is 10835561.

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 16553801 - 2⁶ = 16553737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16553821) 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, 44075 + ... + 44448.

It is an arithmetic number, because the mean of its divisors is an integer number (2390148).

Almost surely, 2^16553801 is an apocalyptic number.

16553801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16553801 is a deficient number, since it is larger than the sum of its proper divisors (2567383).

16553801 is a wasteful number, since it uses less digits than its factorization.

16553801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88551.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 16553801 is about 4068.6362580108. The cubic root of 16553801 is about 254.8585708119.

The spelling of 16553801 in words is "sixteen million, five hundred fifty-three thousand, eight hundred one".