33550551149 has 2 divisors, whose sum is σ = 33550551150. Its totient is φ = 33550551148.

The previous prime is 33550551121. The next prime is 33550551157. The reversal of 33550551149 is 94115505533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18098320900 + 15452230249 = 134530^2 + 124307^2 .

It is a cyclic number.

It is not a de Polignac number, because 33550551149 - 2⁸ = 33550550893 is a prime.

It is a super-2 number, since 2×33550551149² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33550551169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16775275574 + 16775275575.

It is an arithmetic number, because the mean of its divisors is an integer number (16775275575).

Almost surely, 2^33550551149 is an apocalyptic number.

It is an amenable number.

33550551149 is a deficient number, since it is larger than the sum of its proper divisors (1).

33550551149 is an equidigital number, since it uses as much as digits as its factorization.

33550551149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 202500, while the sum is 41.

The spelling of 33550551149 in words is "thirty-three billion, five hundred fifty million, five hundred fifty-one thousand, one hundred forty-nine".