55103533515 has 48 divisors (see below), whose sum is σ = 101299498560. Its totient is φ = 27649923840.

The previous prime is 55103533453. The next prime is 55103533519. The reversal of 55103533515 is 51533530155.

55103533515 is a `hidden beast` number, since 5 + 5 + 103 + 5 + 33 + 515 = 666.

It is not a de Polignac number, because 55103533515 - 2⁹ = 55103533003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55103533515.

It is not an unprimeable number, because it can be changed into a prime (55103533519) 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 47 ways as a sum of consecutive naturals, for example, 373260 + ... + 499529.

It is an arithmetic number, because the mean of its divisors is an integer number (2110406220).

Almost surely, 2^55103533515 is an apocalyptic number.

55103533515 is a deficient number, since it is larger than the sum of its proper divisors (46195965045).

55103533515 is a wasteful number, since it uses less digits than its factorization.

55103533515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872884 (or 872881 counting only the distinct ones).

The product of its (nonzero) digits is 84375, while the sum is 36.

The spelling of 55103533515 in words is "fifty-five billion, one hundred three million, five hundred thirty-three thousand, five hundred fifteen".