16522949 has 2 divisors, whose sum is σ = 16522950. Its totient is φ = 16522948.

The previous prime is 16522931. The next prime is 16522999. The reversal of 16522949 is 94922561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11437924 + 5085025 = 3382^2 + 2255^2 .

It is a cyclic number.

It is not a de Polignac number, because 16522949 - 2²⁰ = 15474373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16522999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8261474 + 8261475.

It is an arithmetic number, because the mean of its divisors is an integer number (8261475).

Almost surely, 2^16522949 is an apocalyptic number.

It is an amenable number.

16522949 is a deficient number, since it is larger than the sum of its proper divisors (1).

16522949 is an equidigital number, since it uses as much as digits as its factorization.

16522949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 16522949 is about 4064.8430474005. The cubic root of 16522949 is about 254.7001422131.

It can be divided in two parts, 16522 and 949, that added together give a palindrome (17471).

The spelling of 16522949 in words is "sixteen million, five hundred twenty-two thousand, nine hundred forty-nine".