56020287 has 16 divisors (see below), whose sum is σ = 80773632. Its totient is φ = 34400640.

The previous prime is 56020247. The next prime is 56020297. The reversal of 56020287 is 78202065.

It is not a de Polignac number, because 56020287 - 2²³ = 47631679 is a prime.

It is a super-3 number, since 3×56020287³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56020247) 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 in 15 ways as a sum of consecutive naturals, for example, 9289 + ... + 14082.

It is an arithmetic number, because the mean of its divisors is an integer number (5048352).

Almost surely, 2^56020287 is an apocalyptic number.

56020287 is a deficient number, since it is larger than the sum of its proper divisors (24753345).

56020287 is a wasteful number, since it uses less digits than its factorization.

56020287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23438.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 56020287 is about 7484.6701330119. The cubic root of 56020287 is about 382.6324305421.

The spelling of 56020287 in words is "fifty-six million, twenty thousand, two hundred eighty-seven".