55405331315 has 4 divisors (see below), whose sum is σ = 66486397584. Its totient is φ = 44324265048.

The previous prime is 55405331297. The next prime is 55405331353. The reversal of 55405331315 is 51313350455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51313350455 = 5 ⋅10262670091.

It is a cyclic number.

It is not a de Polignac number, because 55405331315 - 2¹⁰ = 55405330291 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5540533127 + ... + 5540533136.

It is an arithmetic number, because the mean of its divisors is an integer number (16621599396).

Almost surely, 2^55405331315 is an apocalyptic number.

55405331315 is a deficient number, since it is larger than the sum of its proper divisors (11081066269).

55405331315 is a wasteful number, since it uses less digits than its factorization.

55405331315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11081066268.

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 55405331315 in words is "fifty-five billion, four hundred five million, three hundred thirty-one thousand, three hundred fifteen".