1056226501657 has 2 divisors, whose sum is σ = 1056226501658. Its totient is φ = 1056226501656.

The previous prime is 1056226501639. The next prime is 1056226501661. The reversal of 1056226501657 is 7561056226501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 780941596681 + 275284904976 = 883709^2 + 524676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056226501657 - 2¹⁵ = 1056226468889 is a prime.

It is a super-2 number, since 2×1056226501657² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1056226501667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528113250828 + 528113250829.

It is an arithmetic number, because the mean of its divisors is an integer number (528113250829).

Almost surely, 2^{1056226501657} is an apocalyptic number.

It is an amenable number.

1056226501657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056226501657 is an equidigital number, since it uses as much as digits as its factorization.

1056226501657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 1056226501657 in words is "one trillion, fifty-six billion, two hundred twenty-six million, five hundred one thousand, six hundred fifty-seven".