55894780867 has 4 divisors (see below), whose sum is σ = 55908322120. Its totient is φ = 55881239616.

The previous prime is 55894780859. The next prime is 55894780897. The reversal of 55894780867 is 76808749855.

55894780867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55894780867 - 2³ = 55894780859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55894780897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6764433 + ... + 6772690.

It is an arithmetic number, because the mean of its divisors is an integer number (13977080530).

Almost surely, 2^55894780867 is an apocalyptic number.

55894780867 is a deficient number, since it is larger than the sum of its proper divisors (13541253).

55894780867 is a wasteful number, since it uses less digits than its factorization.

55894780867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13541252.

The product of its (nonzero) digits is 135475200, while the sum is 67.

The spelling of 55894780867 in words is "fifty-five billion, eight hundred ninety-four million, seven hundred eighty thousand, eight hundred sixty-seven".