16222553 has 2 divisors, whose sum is σ = 16222554. Its totient is φ = 16222552.

The previous prime is 16222543. The next prime is 16222631. The reversal of 16222553 is 35522261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14961424 + 1261129 = 3868^2 + 1123^2 .

It is a cyclic number.

It is not a de Polignac number, because 16222553 - 2⁶ = 16222489 is a prime.

It is not a weakly prime, because it can be changed into another prime (16222543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8111276 + 8111277.

It is an arithmetic number, because the mean of its divisors is an integer number (8111277).

Almost surely, 2^16222553 is an apocalyptic number.

It is an amenable number.

16222553 is a deficient number, since it is larger than the sum of its proper divisors (1).

16222553 is an equidigital number, since it uses as much as digits as its factorization.

16222553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 26.

The square root of 16222553 is about 4027.7230540344. The cubic root of 16222553 is about 253.1471645073.

The spelling of 16222553 in words is "sixteen million, two hundred twenty-two thousand, five hundred fifty-three".