16590551 has 2 divisors, whose sum is σ = 16590552. Its totient is φ = 16590550.

The previous prime is 16590529. The next prime is 16590557. The reversal of 16590551 is 15509561.

It is a strong prime.

It is an emirp because it is prime and its reverse (15509561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16590551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16590557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8295275 + 8295276.

It is an arithmetic number, because the mean of its divisors is an integer number (8295276).

Almost surely, 2^16590551 is an apocalyptic number.

16590551 is a deficient number, since it is larger than the sum of its proper divisors (1).

16590551 is an equidigital number, since it uses as much as digits as its factorization.

16590551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 16590551 is about 4073.1500095135. The cubic root of 16590551 is about 255.0470296444.

The spelling of 16590551 in words is "sixteen million, five hundred ninety thousand, five hundred fifty-one".