1056540761501 has 2 divisors, whose sum is σ = 1056540761502. Its totient is φ = 1056540761500.

The previous prime is 1056540761477. The next prime is 1056540761531. The reversal of 1056540761501 is 1051670456501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 956004840025 + 100535921476 = 977755^2 + 317074^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056540761501 - 2¹⁰ = 1056540760477 is a prime.

It is a super-2 number, since 2×1056540761501² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056540761531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528270380750 + 528270380751.

It is an arithmetic number, because the mean of its divisors is an integer number (528270380751).

Almost surely, 2^{1056540761501} is an apocalyptic number.

It is an amenable number.

1056540761501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056540761501 is an equidigital number, since it uses as much as digits as its factorization.

1056540761501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 41.

The spelling of 1056540761501 in words is "one trillion, fifty-six billion, five hundred forty million, seven hundred sixty-one thousand, five hundred one".