56554237 has 2 divisors, whose sum is σ = 56554238. Its totient is φ = 56554236.

The previous prime is 56554213. The next prime is 56554247. The reversal of 56554237 is 73245565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43744996 + 12809241 = 6614^2 + 3579^2 .

It is a cyclic number.

It is not a de Polignac number, because 56554237 - 2¹⁹ = 56029949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56554196 and 56554205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56554247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28277118 + 28277119.

It is an arithmetic number, because the mean of its divisors is an integer number (28277119).

Almost surely, 2^56554237 is an apocalyptic number.

It is an amenable number.

56554237 is a deficient number, since it is larger than the sum of its proper divisors (1).

56554237 is an equidigital number, since it uses as much as digits as its factorization.

56554237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 37.

The square root of 56554237 is about 7520.2551153535. The cubic root of 56554237 is about 383.8442587656.

The spelling of 56554237 in words is "fifty-six million, five hundred fifty-four thousand, two hundred thirty-seven".