56322997 has 4 divisors (see below), whose sum is σ = 56615020. Its totient is φ = 56030976.

The previous prime is 56322977. The next prime is 56323019. The reversal of 56322997 is 79922365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79922365 = 5 ⋅15984473.

It can be written as a sum of positive squares in 2 ways, for example, as 8242641 + 48080356 = 2871^2 + 6934^2 .

It is a cyclic number.

It is not a de Polignac number, because 56322997 - 2²³ = 47934389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56322977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145722 + ... + 146107.

It is an arithmetic number, because the mean of its divisors is an integer number (14153755).

Almost surely, 2^56322997 is an apocalyptic number.

It is an amenable number.

56322997 is a deficient number, since it is larger than the sum of its proper divisors (292023).

56322997 is a wasteful number, since it uses less digits than its factorization.

56322997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292022.

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

The square root of 56322997 is about 7504.8648888571. The cubic root of 56322997 is about 383.3203876325.

The spelling of 56322997 in words is "fifty-six million, three hundred twenty-two thousand, nine hundred ninety-seven".