56662247 has 4 divisors (see below), whose sum is σ = 57731400. Its totient is φ = 55593096.

The previous prime is 56662183. The next prime is 56662273. The reversal of 56662247 is 74226665.

56662247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56662247 - 2⁶ = 56662183 is a prime.

It is a super-2 number, since 2×56662247² = 6421220470178018, which contains 22 as substring.

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 56662247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56662147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534497 + ... + 534602.

It is an arithmetic number, because the mean of its divisors is an integer number (14432850).

Almost surely, 2^56662247 is an apocalyptic number.

56662247 is a deficient number, since it is larger than the sum of its proper divisors (1069153).

56662247 is a wasteful number, since it uses less digits than its factorization.

56662247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069152.

The product of its digits is 120960, while the sum is 38.

The square root of 56662247 is about 7527.4329621724. The cubic root of 56662247 is about 384.0884647708.

The spelling of 56662247 in words is "fifty-six million, six hundred sixty-two thousand, two hundred forty-seven".