55321342515 has 12 divisors (see below), whose sum is σ = 95890327104. Its totient is φ = 29504715984.

The previous prime is 55321342477. The next prime is 55321342519. The reversal of 55321342515 is 51524312355.

55321342515 is a `hidden beast` number, since 5 + 5 + 3 + 2 + 134 + 2 + 515 = 666.

It is not a de Polignac number, because 55321342515 - 2⁶ = 55321342451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55321342515.

It is not an unprimeable number, because it can be changed into a prime (55321342519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 614681539 + ... + 614681628.

It is an arithmetic number, because the mean of its divisors is an integer number (7990860592).

Almost surely, 2^55321342515 is an apocalyptic number.

55321342515 is a deficient number, since it is larger than the sum of its proper divisors (40568984589).

55321342515 is a wasteful number, since it uses less digits than its factorization.

55321342515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229363178 (or 1229363175 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 55321342515 in words is "fifty-five billion, three hundred twenty-one million, three hundred forty-two thousand, five hundred fifteen".