56438083465 has 4 divisors (see below), whose sum is σ = 67725700164. Its totient is φ = 45150466768.

The previous prime is 56438083451. The next prime is 56438083469.

56438083465 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13832582544 + 42605500921 = 117612^2 + 206411^2 .

It is a cyclic number.

It is not a de Polignac number, because 56438083465 - 2⁵ = 56438083433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56438083469) 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, 5643808342 + ... + 5643808351.

It is an arithmetic number, because the mean of its divisors is an integer number (16931425041).

Almost surely, 2^56438083465 is an apocalyptic number.

It is an amenable number.

56438083465 is a deficient number, since it is larger than the sum of its proper divisors (11287616699).

56438083465 is a wasteful number, since it uses less digits than its factorization.

56438083465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11287616698.

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 56438083465 in words is "fifty-six billion, four hundred thirty-eight million, eighty-three thousand, four hundred sixty-five".