56220326025431 has 2 divisors, whose sum is σ = 56220326025432. Its totient is φ = 56220326025430.

The previous prime is 56220326025389. The next prime is 56220326025463. The reversal of 56220326025431 is 13452062302265.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56220326025431 - 2¹⁰ = 56220326024407 is a prime.

It is a super-2 number, since 2×56220326025431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56220326028431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28110163012715 + 28110163012716.

It is an arithmetic number, because the mean of its divisors is an integer number (28110163012716).

Almost surely, 2^{56220326025431} is an apocalyptic number.

56220326025431 is a deficient number, since it is larger than the sum of its proper divisors (1).

56220326025431 is an equidigital number, since it uses as much as digits as its factorization.

56220326025431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 56220326025431 its reverse (13452062302265), we get a palindrome (69672388327696).

The spelling of 56220326025431 in words is "fifty-six trillion, two hundred twenty billion, three hundred twenty-six million, twenty-five thousand, four hundred thirty-one".