33504050557 has 2 divisors, whose sum is σ = 33504050558. Its totient is φ = 33504050556.

The previous prime is 33504050509. The next prime is 33504050561. The reversal of 33504050557 is 75505040533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17228925081 + 16275125476 = 131259^2 + 127574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33504050557 is a prime.

It is a super-2 number, since 2×33504050557² (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 (33504050057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16752025278 + 16752025279.

It is an arithmetic number, because the mean of its divisors is an integer number (16752025279).

Almost surely, 2^33504050557 is an apocalyptic number.

It is an amenable number.

33504050557 is a deficient number, since it is larger than the sum of its proper divisors (1).

33504050557 is an equidigital number, since it uses as much as digits as its factorization.

33504050557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157500, while the sum is 37.

The spelling of 33504050557 in words is "thirty-three billion, five hundred four million, fifty thousand, five hundred fifty-seven".