54556778195 has 4 divisors (see below), whose sum is σ = 65468133840. Its totient is φ = 43645422552.

The previous prime is 54556778183. The next prime is 54556778219. The reversal of 54556778195 is 59187765545.

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 54556778195 - 2⁴ = 54556778179 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5455677815 + ... + 5455677824.

It is an arithmetic number, because the mean of its divisors is an integer number (16367033460).

Almost surely, 2^54556778195 is an apocalyptic number.

54556778195 is a deficient number, since it is larger than the sum of its proper divisors (10911355645).

54556778195 is a wasteful number, since it uses less digits than its factorization.

54556778195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10911355644.

The product of its digits is 52920000, while the sum is 62.

The spelling of 54556778195 in words is "fifty-four billion, five hundred fifty-six million, seven hundred seventy-eight thousand, one hundred ninety-five".