56502247 has 2 divisors, whose sum is σ = 56502248. Its totient is φ = 56502246.

The previous prime is 56502241. The next prime is 56502263. The reversal of 56502247 is 74220565.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56502247 is a prime.

It is equal to p_3366454 and since 56502247 and 3366454 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56502241) 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 as a sum of consecutive naturals, namely, 28251123 + 28251124.

It is an arithmetic number, because the mean of its divisors is an integer number (28251124).

Almost surely, 2^56502247 is an apocalyptic number.

56502247 is a deficient number, since it is larger than the sum of its proper divisors (1).

56502247 is an equidigital number, since it uses as much as digits as its factorization.

56502247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 56502247 is about 7516.7976559170. The cubic root of 56502247 is about 383.7266007299.

The spelling of 56502247 in words is "fifty-six million, five hundred two thousand, two hundred forty-seven".