56179261 has 2 divisors, whose sum is σ = 56179262. Its totient is φ = 56179260.

The previous prime is 56179243. The next prime is 56179273. The reversal of 56179261 is 16297165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46376100 + 9803161 = 6810^2 + 3131^2 .

It is a cyclic number.

It is not a de Polignac number, because 56179261 - 2⁵ = 56179229 is a prime.

It is a super-2 number, since 2×56179261² = 6312218733012242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56179261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56179661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28089630 + 28089631.

It is an arithmetic number, because the mean of its divisors is an integer number (28089631).

Almost surely, 2^56179261 is an apocalyptic number.

It is an amenable number.

56179261 is a deficient number, since it is larger than the sum of its proper divisors (1).

56179261 is an equidigital number, since it uses as much as digits as its factorization.

56179261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 56179261 is about 7495.2825830652. The cubic root of 56179261 is about 382.9940326339.

It can be divided in two parts, 5617 and 9261, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 56179261 in words is "fifty-six million, one hundred seventy-nine thousand, two hundred sixty-one".