55891982745 has 16 divisors (see below), whose sum is σ = 99363525120. Its totient is φ = 29809057392.

The previous prime is 55891982723. The next prime is 55891982791. The reversal of 55891982745 is 54728919855.

55891982745 is a `hidden beast` number, since 5 + 589 + 1 + 9 + 8 + 2 + 7 + 45 = 666.

It is not a de Polignac number, because 55891982745 - 2⁹ = 55891982233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207007209 + ... + 207007478.

It is an arithmetic number, because the mean of its divisors is an integer number (6210220320).

Almost surely, 2^55891982745 is an apocalyptic number.

It is an amenable number.

55891982745 is a deficient number, since it is larger than the sum of its proper divisors (43471542375).

55891982745 is a wasteful number, since it uses less digits than its factorization.

55891982745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414014701 (or 414014695 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 63.

The spelling of 55891982745 in words is "fifty-five billion, eight hundred ninety-one million, nine hundred eighty-two thousand, seven hundred forty-five".