55556727895 has 4 divisors (see below), whose sum is σ = 66668073480. Its totient is φ = 44445382312.

The previous prime is 55556727881. The next prime is 55556727899. The reversal of 55556727895 is 59872765555.

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 55556727895 - 2³³ = 46966793303 is a prime.

It is a super-2 number, since 2×55556727895² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55556727899) 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, 5555672785 + ... + 5555672794.

It is an arithmetic number, because the mean of its divisors is an integer number (16667018370).

Almost surely, 2^55556727895 is an apocalyptic number.

55556727895 is a deficient number, since it is larger than the sum of its proper divisors (11111345585).

55556727895 is a wasteful number, since it uses less digits than its factorization.

55556727895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111345584.

The product of its digits is 132300000, while the sum is 64.

The spelling of 55556727895 in words is "fifty-five billion, five hundred fifty-six million, seven hundred twenty-seven thousand, eight hundred ninety-five".