56606145461 has 2 divisors, whose sum is σ = 56606145462. Its totient is φ = 56606145460.

The previous prime is 56606145433. The next prime is 56606145467. The reversal of 56606145461 is 16454160665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56601168100 + 4977361 = 237910^2 + 2231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56606145461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56606145467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28303072730 + 28303072731.

It is an arithmetic number, because the mean of its divisors is an integer number (28303072731).

Almost surely, 2^56606145461 is an apocalyptic number.

It is an amenable number.

56606145461 is a deficient number, since it is larger than the sum of its proper divisors (1).

56606145461 is an equidigital number, since it uses as much as digits as its factorization.

56606145461 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 44.

The spelling of 56606145461 in words is "fifty-six billion, six hundred six million, one hundred forty-five thousand, four hundred sixty-one".