55819752815 has 8 divisors (see below), whose sum is σ = 68081797248. Its totient is φ = 43923739680.

The previous prime is 55819752809. The next prime is 55819752823. The reversal of 55819752815 is 51825791855.

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

It is not a de Polignac number, because 55819752815 - 2¹⁴ = 55819736431 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, 91507487 + ... + 91508096.

It is an arithmetic number, because the mean of its divisors is an integer number (8510224656).

Almost surely, 2^55819752815 is an apocalyptic number.

55819752815 is a deficient number, since it is larger than the sum of its proper divisors (12262044433).

55819752815 is a wasteful number, since it uses less digits than its factorization.

55819752815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183015649.

The product of its digits is 5040000, while the sum is 56.

The spelling of 55819752815 in words is "fifty-five billion, eight hundred nineteen million, seven hundred fifty-two thousand, eight hundred fifteen".