56820297 has 8 divisors (see below), whose sum is σ = 75798720. Its totient is φ = 37861040.

The previous prime is 56820287. The next prime is 56820311. The reversal of 56820297 is 79202865.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56820297 - 2⁶ = 56820233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56820217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4972 + ... + 11762.

It is an arithmetic number, because the mean of its divisors is an integer number (9474840).

Almost surely, 2^56820297 is an apocalyptic number.

It is an amenable number.

56820297 is a deficient number, since it is larger than the sum of its proper divisors (18978423).

56820297 is a wasteful number, since it uses less digits than its factorization.

56820297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9583.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 56820297 is about 7537.9239184274. The cubic root of 56820297 is about 384.4452504027.

The spelling of 56820297 in words is "fifty-six million, eight hundred twenty thousand, two hundred ninety-seven".