56477349505 has 16 divisors (see below), whose sum is σ = 71774987904. Its totient is φ = 42572407680.

The previous prime is 56477349503. The next prime is 56477349521. The reversal of 56477349505 is 50594377465.

It is a happy number.

It is not a de Polignac number, because 56477349505 - 2¹ = 56477349503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56477349503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3657276 + ... + 3672685.

It is an arithmetic number, because the mean of its divisors is an integer number (4485936744).

Almost surely, 2^56477349505 is an apocalyptic number.

It is an amenable number.

56477349505 is a deficient number, since it is larger than the sum of its proper divisors (15297638399).

56477349505 is a wasteful number, since it uses less digits than its factorization.

56477349505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330056.

The product of its (nonzero) digits is 15876000, while the sum is 55.

The spelling of 56477349505 in words is "fifty-six billion, four hundred seventy-seven million, three hundred forty-nine thousand, five hundred five".