55431315305 has 8 divisors (see below), whose sum is σ = 66519117000. Its totient is φ = 44344026496.

The previous prime is 55431315283. The next prime is 55431315311. The reversal of 55431315305 is 50351313455.

It can be written as a sum of positive squares in 4 ways, for example, as 30063745321 + 25367569984 = 173389^2 + 159272^2 .

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 55431315305 - 2³⁰ = 54357573481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174551 + ... + 375939.

It is an arithmetic number, because the mean of its divisors is an integer number (8314889625).

Almost surely, 2^55431315305 is an apocalyptic number.

It is an amenable number.

55431315305 is a deficient number, since it is larger than the sum of its proper divisors (11087801695).

55431315305 is a wasteful number, since it uses less digits than its factorization.

55431315305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256443.

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

The spelling of 55431315305 in words is "fifty-five billion, four hundred thirty-one million, three hundred fifteen thousand, three hundred five".