56210047 has 2 divisors, whose sum is σ = 56210048. Its totient is φ = 56210046.

The previous prime is 56210023. The next prime is 56210053. The reversal of 56210047 is 74001265.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56210047 is a prime.

It is equal to p_3350194 and since 56210047 and 3350194 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 (56210017) 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, 28105023 + 28105024.

It is an arithmetic number, because the mean of its divisors is an integer number (28105024).

Almost surely, 2^56210047 is an apocalyptic number.

56210047 is a deficient number, since it is larger than the sum of its proper divisors (1).

56210047 is an equidigital number, since it uses as much as digits as its factorization.

56210047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 56210047 is about 7497.3359935380. The cubic root of 56210047 is about 383.0639795677.

It can be divided in two parts, 562 and 10047, that added together give a square (10609 = 103²).

The spelling of 56210047 in words is "fifty-six million, two hundred ten thousand, forty-seven".