16555051 has 2 divisors, whose sum is σ = 16555052. Its totient is φ = 16555050.

The previous prime is 16555037. The next prime is 16555069. The reversal of 16555051 is 15055561.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16555051 is a prime.

It is a super-2 number, since 2×16555051² = 548139427225202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16555031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277525 + 8277526.

It is an arithmetic number, because the mean of its divisors is an integer number (8277526).

Almost surely, 2^16555051 is an apocalyptic number.

16555051 is a deficient number, since it is larger than the sum of its proper divisors (1).

16555051 is an equidigital number, since it uses as much as digits as its factorization.

16555051 is an evil number, because the sum of its binary digits is even.

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

The square root of 16555051 is about 4068.7898692363. The cubic root of 16555051 is about 254.8649855561.

The spelling of 16555051 in words is "sixteen million, five hundred fifty-five thousand, fifty-one".