56540134061 has 2 divisors, whose sum is σ = 56540134062. Its totient is φ = 56540134060.

The previous prime is 56540134043. The next prime is 56540134073. The reversal of 56540134061 is 16043104565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50519305225 + 6020828836 = 224765^2 + 77594^2 .

It is a cyclic number.

It is not a de Polignac number, because 56540134061 - 2¹⁴ = 56540117677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56540134081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28270067030 + 28270067031.

It is an arithmetic number, because the mean of its divisors is an integer number (28270067031).

Almost surely, 2^56540134061 is an apocalyptic number.

It is an amenable number.

56540134061 is a deficient number, since it is larger than the sum of its proper divisors (1).

56540134061 is an equidigital number, since it uses as much as digits as its factorization.

56540134061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 56540134061 in words is "fifty-six billion, five hundred forty million, one hundred thirty-four thousand, sixty-one".