56732287 has 2 divisors, whose sum is σ = 56732288. Its totient is φ = 56732286.

The previous prime is 56732267. The next prime is 56732311. The reversal of 56732287 is 78223765.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56732287 - 2¹¹ = 56730239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56732227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28366143 + 28366144.

It is an arithmetic number, because the mean of its divisors is an integer number (28366144).

Almost surely, 2^56732287 is an apocalyptic number.

56732287 is a deficient number, since it is larger than the sum of its proper divisors (1).

56732287 is an equidigital number, since it uses as much as digits as its factorization.

56732287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 56732287 is about 7532.0838418063. The cubic root of 56732287 is about 384.2466563993.

The spelling of 56732287 in words is "fifty-six million, seven hundred thirty-two thousand, two hundred eighty-seven".