56145065477 has 4 divisors (see below), whose sum is σ = 56240713536. Its totient is φ = 56049417420.

The previous prime is 56145065447. The next prime is 56145065497. The reversal of 56145065477 is 77456054165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56145065477 - 2⁶ = 56145065413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56145065447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47823149 + ... + 47824322.

It is an arithmetic number, because the mean of its divisors is an integer number (14060178384).

Almost surely, 2^56145065477 is an apocalyptic number.

It is an amenable number.

56145065477 is a deficient number, since it is larger than the sum of its proper divisors (95648059).

56145065477 is an equidigital number, since it uses as much as digits as its factorization.

56145065477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95648058.

The product of its (nonzero) digits is 3528000, while the sum is 50.

The spelling of 56145065477 in words is "fifty-six billion, one hundred forty-five million, sixty-five thousand, four hundred seventy-seven".