56213029 has 4 divisors (see below), whose sum is σ = 56239020. Its totient is φ = 56187040.

The previous prime is 56213021. The next prime is 56213051. The reversal of 56213029 is 92031265.

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 2528100 + 53684929 = 1590^2 + 7327^2 .

It is a cyclic number.

It is not a de Polignac number, because 56213029 - 2³ = 56213021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56212988 and 56213006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56213021) 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, 9424 + ... + 14185.

It is an arithmetic number, because the mean of its divisors is an integer number (14059755).

Almost surely, 2^56213029 is an apocalyptic number.

It is an amenable number.

56213029 is a deficient number, since it is larger than the sum of its proper divisors (25991).

56213029 is a wasteful number, since it uses less digits than its factorization.

56213029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25990.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 56213029 is about 7497.5348615395. The cubic root of 56213029 is about 383.0707534255.

The spelling of 56213029 in words is "fifty-six million, two hundred thirteen thousand, twenty-nine".