55306512215 has 8 divisors (see below), whose sum is σ = 67276963248. Its totient is φ = 43639110720.

The previous prime is 55306512211. The next prime is 55306512227. The reversal of 55306512215 is 51221560355.

55306512215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55306512215 - 2² = 55306512211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55306512211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75761981 + ... + 75762710.

It is an arithmetic number, because the mean of its divisors is an integer number (8409620406).

Almost surely, 2^55306512215 is an apocalyptic number.

55306512215 is a deficient number, since it is larger than the sum of its proper divisors (11970451033).

55306512215 is a wasteful number, since it uses less digits than its factorization.

55306512215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151524769.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 55306512215 in words is "fifty-five billion, three hundred six million, five hundred twelve thousand, two hundred fifteen".