56166541 has 2 divisors, whose sum is σ = 56166542. Its totient is φ = 56166540.

The previous prime is 56166499. The next prime is 56166563. The reversal of 56166541 is 14566165.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45630025 + 10536516 = 6755^2 + 3246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56166541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56166497 and 56166506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56166581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28083270 + 28083271.

It is an arithmetic number, because the mean of its divisors is an integer number (28083271).

Almost surely, 2^56166541 is an apocalyptic number.

It is an amenable number.

56166541 is a deficient number, since it is larger than the sum of its proper divisors (1).

56166541 is an equidigital number, since it uses as much as digits as its factorization.

56166541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

The square root of 56166541 is about 7494.4340013106. The cubic root of 56166541 is about 382.9651248618.

The spelling of 56166541 in words is "fifty-six million, one hundred sixty-six thousand, five hundred forty-one".