55115603533 has 8 divisors (see below), whose sum is σ = 56468245176. Its totient is φ = 53763360000.

The previous prime is 55115603509. The next prime is 55115603539. The reversal of 55115603533 is 33530651155.

It can be written as a sum of positive squares in 4 ways, for example, as 9779825449 + 45335778084 = 98893^2 + 212922^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55115603533 - 2²⁵ = 55082049101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55115603492 and 55115603501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55115603539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191035 + ... + 383047.

It is an arithmetic number, because the mean of its divisors is an integer number (7058530647).

Almost surely, 2^55115603533 is an apocalyptic number.

It is an amenable number.

55115603533 is a deficient number, since it is larger than the sum of its proper divisors (1352641643).

55115603533 is a wasteful number, since it uses less digits than its factorization.

55115603533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199055.

The product of its (nonzero) digits is 101250, while the sum is 37.

The spelling of 55115603533 in words is "fifty-five billion, one hundred fifteen million, six hundred three thousand, five hundred thirty-three".