56437 has 2 divisors, whose sum is σ = 56438. Its totient is φ = 56436.

The previous prime is 56431. The next prime is 56443. The reversal of 56437 is 73465.

It is a balanced prime because it is at equal distance from previous prime (56431) and next prime (56443).

It can be written as a sum of positive squares in only one way, i.e., 54756 + 1681 = 234^2 + 41^2 .

It is a cyclic number.

It is not a de Polignac number, because 56437 - 2¹⁵ = 23669 is a prime.

It is an Ulam number.

56437 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 56437.

It is not a weakly prime, because it can be changed into another prime (56431) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28218 + 28219.

It is an arithmetic number, because the mean of its divisors is an integer number (28219).

2⁵⁶⁴³⁷ is an apocalyptic number.

It is an amenable number.

56437 is a deficient number, since it is larger than the sum of its proper divisors (1).

56437 is an equidigital number, since it uses as much as digits as its factorization.

56437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 25.

The square root of 56437 is about 237.5647280216. The cubic root of 56437 is about 38.3578838742.

The spelling of 56437 in words is "fifty-six thousand, four hundred thirty-seven".