56820265 has 8 divisors (see below), whose sum is σ = 68348808. Its totient is φ = 45346560.

The previous prime is 56820263. The next prime is 56820287. The reversal of 56820265 is 56202865.

It can be written as a sum of positive squares in 4 ways, for example, as 5669161 + 51151104 = 2381^2 + 7152^2 .

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

It is not a de Polignac number, because 56820265 - 2¹ = 56820263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56820265.

It is not an unprimeable number, because it can be changed into a prime (56820263) 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, 11392 + ... + 15601.

It is an arithmetic number, because the mean of its divisors is an integer number (8543601).

Almost surely, 2^56820265 is an apocalyptic number.

It is an amenable number.

56820265 is a deficient number, since it is larger than the sum of its proper divisors (11528543).

56820265 is a wasteful number, since it uses less digits than its factorization.

56820265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27419.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 56820265 is about 7537.9217958268. The cubic root of 56820265 is about 384.4451782321.

The spelling of 56820265 in words is "fifty-six million, eight hundred twenty thousand, two hundred sixty-five".