55575275827 has 2 divisors, whose sum is σ = 55575275828. Its totient is φ = 55575275826.

The previous prime is 55575275741. The next prime is 55575275851. The reversal of 55575275827 is 72857257555.

55575275827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55575275827 is a prime.

It is a super-2 number, since 2×55575275827² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55575275627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27787637913 + 27787637914.

It is an arithmetic number, because the mean of its divisors is an integer number (27787637914).

Almost surely, 2^55575275827 is an apocalyptic number.

55575275827 is a deficient number, since it is larger than the sum of its proper divisors (1).

55575275827 is an equidigital number, since it uses as much as digits as its factorization.

55575275827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34300000, while the sum is 58.

The spelling of 55575275827 in words is "fifty-five billion, five hundred seventy-five million, two hundred seventy-five thousand, eight hundred twenty-seven".