55205220315 has 32 divisors (see below), whose sum is σ = 101001116160. Its totient is φ = 25223065344.

The previous prime is 55205220313. The next prime is 55205220341. The reversal of 55205220315 is 51302250255.

It is not a de Polignac number, because 55205220315 - 2¹ = 55205220313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55205220311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55231 + ... + 336839.

It is an arithmetic number, because the mean of its divisors is an integer number (3156284880).

Almost surely, 2^55205220315 is an apocalyptic number.

55205220315 is a deficient number, since it is larger than the sum of its proper divisors (45795895845).

55205220315 is a wasteful number, since it uses less digits than its factorization.

55205220315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283491.

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 55205220315 in words is "fifty-five billion, two hundred five million, two hundred twenty thousand, three hundred fifteen".