56229973 has 4 divisors (see below), whose sum is σ = 57749740. Its totient is φ = 54710208.

The previous prime is 56229919. The next prime is 56229977. The reversal of 56229973 is 37992265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37992265 = 5 ⋅7598453.

It can be written as a sum of positive squares in 2 ways, for example, as 51022449 + 5207524 = 7143^2 + 2282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56229973 is a prime.

It is a super-3 number, since 3×56229973³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56229977) 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, 759828 + ... + 759901.

It is an arithmetic number, because the mean of its divisors is an integer number (14437435).

Almost surely, 2^56229973 is an apocalyptic number.

It is an amenable number.

56229973 is a deficient number, since it is larger than the sum of its proper divisors (1519767).

56229973 is a wasteful number, since it uses less digits than its factorization.

56229973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519766.

The product of its digits is 204120, while the sum is 43.

The square root of 56229973 is about 7498.6647478068. The cubic root of 56229973 is about 383.1092385650.

The spelling of 56229973 in words is "fifty-six million, two hundred twenty-nine thousand, nine hundred seventy-three".