55515532433 has 2 divisors, whose sum is σ = 55515532434. Its totient is φ = 55515532432.

The previous prime is 55515532421. The next prime is 55515532441. The reversal of 55515532433 is 33423551555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52456115089 + 3059417344 = 229033^2 + 55312^2 .

It is a cyclic number.

It is not a de Polignac number, because 55515532433 - 2¹² = 55515528337 is a prime.

It is not a weakly prime, because it can be changed into another prime (55515532463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27757766216 + 27757766217.

It is an arithmetic number, because the mean of its divisors is an integer number (27757766217).

Almost surely, 2^55515532433 is an apocalyptic number.

It is an amenable number.

55515532433 is a deficient number, since it is larger than the sum of its proper divisors (1).

55515532433 is an equidigital number, since it uses as much as digits as its factorization.

55515532433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 675000, while the sum is 41.

The spelling of 55515532433 in words is "fifty-five billion, five hundred fifteen million, five hundred thirty-two thousand, four hundred thirty-three".