58056781 has 2 divisors, whose sum is σ = 58056782. Its totient is φ = 58056780.

The previous prime is 58056749. The next prime is 58056793. The reversal of 58056781 is 18765085.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43164900 + 14891881 = 6570^2 + 3859^2 .

It is a cyclic number.

It is not a de Polignac number, because 58056781 - 2⁵ = 58056749 is a prime.

It is a super-2 number, since 2×58056781² = 6741179640163922, which contains 22 as substring.

It is the 7620-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58056701) by changing a digit.

It is a nontrivial repunit in base 7619.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29028390 + 29028391.

It is an arithmetic number, because the mean of its divisors is an integer number (29028391).

Almost surely, 2^58056781 is an apocalyptic number.

It is an amenable number.

58056781 is a deficient number, since it is larger than the sum of its proper divisors (1).

58056781 is an equidigital number, since it uses as much as digits as its factorization.

58056781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 58056781 is about 7619.5000492158. The cubic root of 58056781 is about 387.2139402474.

The spelling of 58056781 in words is "fifty-eight million, fifty-six thousand, seven hundred eighty-one".