56089280377 has 16 divisors (see below), whose sum is σ = 61907826960. Its totient is φ = 50797733376.

The previous prime is 56089280347. The next prime is 56089280399. The reversal of 56089280377 is 77308298065.

It can be written as a sum of positive squares in 8 ways, for example, as 46373038336 + 9716242041 = 215344^2 + 98571^2 .

It is a de Polignac number, because none of the positive numbers 2^k-56089280377 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56089280347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124408 + ... + 357289.

It is an arithmetic number, because the mean of its divisors is an integer number (3869239185).

Almost surely, 2^56089280377 is an apocalyptic number.

It is an amenable number.

56089280377 is a deficient number, since it is larger than the sum of its proper divisors (5818546583).

56089280377 is an equidigital number, since it uses as much as digits as its factorization.

56089280377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481789 (or 481763 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 56089280377 in words is "fifty-six billion, eighty-nine million, two hundred eighty thousand, three hundred seventy-seven".