5485775891 has 2 divisors, whose sum is σ = 5485775892. Its totient is φ = 5485775890.

The previous prime is 5485775833. The next prime is 5485775899. The reversal of 5485775891 is 1985775845.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5485775891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5485775891.

It is not a weakly prime, because it can be changed into another prime (5485775899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2742887945 + 2742887946.

It is an arithmetic number, because the mean of its divisors is an integer number (2742887946).

Almost surely, 2^5485775891 is an apocalyptic number.

5485775891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5485775891 is an equidigital number, since it uses as much as digits as its factorization.

5485775891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112000, while the sum is 59.

The square root of 5485775891 is about 74066.0238638473. The cubic root of 5485775891 is about 1763.6511551948.

The spelling of 5485775891 in words is "five billion, four hundred eighty-five million, seven hundred seventy-five thousand, eight hundred ninety-one".