56572288227551 has 2 divisors, whose sum is σ = 56572288227552. Its totient is φ = 56572288227550.

The previous prime is 56572288227541. The next prime is 56572288227571. The reversal of 56572288227551 is 15572288227565.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56572288227551 - 2⁶ = 56572288227487 is a prime.

It is a super-2 number, since 2×56572288227551² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56572288227541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28286144113775 + 28286144113776.

It is an arithmetic number, because the mean of its divisors is an integer number (28286144113776).

Almost surely, 2^{56572288227551} is an apocalyptic number.

56572288227551 is a deficient number, since it is larger than the sum of its proper divisors (1).

56572288227551 is an equidigital number, since it uses as much as digits as its factorization.

56572288227551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160000, while the sum is 65.

The spelling of 56572288227551 in words is "fifty-six trillion, five hundred seventy-two billion, two hundred eighty-eight million, two hundred twenty-seven thousand, five hundred fifty-one".