56302113 has 24 divisors (see below), whose sum is σ = 91147072. Its totient is φ = 30276864.

The previous prime is 56302109. The next prime is 56302121. The reversal of 56302113 is 31120365.

It is not a de Polignac number, because 56302113 - 2² = 56302109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56302113.

It is not an unprimeable number, because it can be changed into a prime (56302133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1431 + ... + 10707.

Almost surely, 2^56302113 is an apocalyptic number.

It is an amenable number.

56302113 is a deficient number, since it is larger than the sum of its proper divisors (34844959).

56302113 is a wasteful number, since it uses less digits than its factorization.

56302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9321 (or 9304 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 56302113 is about 7503.4733957015. The cubic root of 56302113 is about 383.2730046627.

Adding to 56302113 its reverse (31120365), we get a palindrome (87422478).

The spelling of 56302113 in words is "fifty-six million, three hundred two thousand, one hundred thirteen".