55852217387 has 8 divisors (see below), whose sum is σ = 56110124304. Its totient is φ = 55594874368.

The previous prime is 55852217383. The next prime is 55852217389. The reversal of 55852217387 is 78371225855.

It is a happy number.

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 55852217387 - 2² = 55852217383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55852217383) 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, 58223 + ... + 339255.

It is an arithmetic number, because the mean of its divisors is an integer number (7013765538).

Almost surely, 2^55852217387 is an apocalyptic number.

55852217387 is a deficient number, since it is larger than the sum of its proper divisors (257906917).

55852217387 is a wasteful number, since it uses less digits than its factorization.

55852217387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281949.

The product of its digits is 4704000, while the sum is 53.

The spelling of 55852217387 in words is "fifty-five billion, eight hundred fifty-two million, two hundred seventeen thousand, three hundred eighty-seven".