56476376109 has 6 divisors (see below), whose sum is σ = 81576987726. Its totient is φ = 37650917400.

The previous prime is 56476376087. The next prime is 56476376113. The reversal of 56476376109 is 90167367465.

It is a happy number.

56476376109 is a `hidden beast` number, since 564 + 7 + 6 + 3 + 76 + 1 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56416700484 + 59675625 = 237522^2 + 7725^2 .

It is not a de Polignac number, because 56476376109 - 2¹⁶ = 56476310573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56476376179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3137576442 + ... + 3137576459.

It is an arithmetic number, because the mean of its divisors is an integer number (13596164621).

Almost surely, 2^56476376109 is an apocalyptic number.

It is an amenable number.

56476376109 is a deficient number, since it is larger than the sum of its proper divisors (25100611617).

56476376109 is a wasteful number, since it uses less digits than its factorization.

56476376109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6275152907 (or 6275152904 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 56476376109 in words is "fifty-six billion, four hundred seventy-six million, three hundred seventy-six thousand, one hundred nine".