55515306764215 has 8 divisors (see below), whose sum is σ = 66618550529568. Its totient is φ = 44412123803040.

The previous prime is 55515306764207. The next prime is 55515306764257. The reversal of 55515306764215 is 51246760351555.

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

It is not a de Polignac number, because 55515306764215 - 2³ = 55515306764207 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 13167676 + ... + 16864705.

It is an arithmetic number, because the mean of its divisors is an integer number (8327318816196).

Almost surely, 2^{55515306764215} is an apocalyptic number.

55515306764215 is a deficient number, since it is larger than the sum of its proper divisors (11103243765353).

55515306764215 is a wasteful number, since it uses less digits than its factorization.

55515306764215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30402089.

The product of its (nonzero) digits is 18900000, while the sum is 55.

The spelling of 55515306764215 in words is "fifty-five trillion, five hundred fifteen billion, three hundred six million, seven hundred sixty-four thousand, two hundred fifteen".