56426533 has 2 divisors, whose sum is σ = 56426534. Its totient is φ = 56426532.

The previous prime is 56426483. The next prime is 56426551. The reversal of 56426533 is 33562465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46485124 + 9941409 = 6818^2 + 3153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56426533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56426033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28213266 + 28213267.

It is an arithmetic number, because the mean of its divisors is an integer number (28213267).

Almost surely, 2^56426533 is an apocalyptic number.

It is an amenable number.

56426533 is a deficient number, since it is larger than the sum of its proper divisors (1).

56426533 is an equidigital number, since it uses as much as digits as its factorization.

56426533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 34.

The square root of 56426533 is about 7511.7596473796. The cubic root of 56426533 is about 383.5551239926. Note that the first 3 decimals are identical.

Adding to 56426533 its reverse (33562465), we get a palindrome (89988998).

The spelling of 56426533 in words is "fifty-six million, four hundred twenty-six thousand, five hundred thirty-three".