56305120369 has 3 divisors (see below), whose sum is σ = 56305357657. Its totient is φ = 56304883082.

The previous prime is 56305120357. The next prime is 56305120381. The reversal of 56305120369 is 96302150365.

It is a happy number.

The square root of 56305120369 is 237287.

It is a perfect power (a square), and thus also a powerful number.

56305120369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (56305120357) and next prime (56305120381).

It is not a de Polignac number, because 56305120369 - 2⁵ = 56305120337 is a prime.

It is a super-2 number, since 2×56305120369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56305120309) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 118644 + ... + 355930.

Almost surely, 2^56305120369 is an apocalyptic number.

56305120369 is the 237287-th square number.

56305120369 is the 118644-th centered octagonal number.

It is an amenable number.

56305120369 is a deficient number, since it is larger than the sum of its proper divisors (237288).

56305120369 is an frugal number, since it uses more digits than its factorization.

56305120369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474574 (or 237287 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 40.

The spelling of 56305120369 in words is "fifty-six billion, three hundred five million, one hundred twenty thousand, three hundred sixty-nine".