56130533 has 2 divisors, whose sum is σ = 56130534. Its totient is φ = 56130532.

The previous prime is 56130509. The next prime is 56130539. The reversal of 56130533 is 33503165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49815364 + 6315169 = 7058^2 + 2513^2 .

It is a cyclic number.

It is not a de Polignac number, because 56130533 - 2⁶ = 56130469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56130539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28065266 + 28065267.

It is an arithmetic number, because the mean of its divisors is an integer number (28065267).

Almost surely, 2^56130533 is an apocalyptic number.

It is an amenable number.

56130533 is a deficient number, since it is larger than the sum of its proper divisors (1).

56130533 is an equidigital number, since it uses as much as digits as its factorization.

56130533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 56130533 is about 7492.0312999880. The cubic root of 56130533 is about 382.8832685592.

Adding to 56130533 its reverse (33503165), we get a palindrome (89633698).

The spelling of 56130533 in words is "fifty-six million, one hundred thirty thousand, five hundred thirty-three".