58221081 has 12 divisors (see below), whose sum is σ = 84188052. Its totient is φ = 38772096.

The previous prime is 58221061. The next prime is 58221089. The reversal of 58221081 is 18012285.

58221081 is a `hidden beast` number, since 582 + 2 + 1 + 0 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37015056 + 21206025 = 6084^2 + 4605^2 .

It is not a de Polignac number, because 58221081 - 2¹⁵ = 58188313 is a prime.

It is a super-2 number, since 2×58221081² = 6779388545617122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (58221089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6925 + ... + 12821.

It is an arithmetic number, because the mean of its divisors is an integer number (7015671).

Almost surely, 2^58221081 is an apocalyptic number.

It is an amenable number.

58221081 is a deficient number, since it is larger than the sum of its proper divisors (25966971).

58221081 is a wasteful number, since it uses less digits than its factorization.

58221081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7000 (or 6997 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 58221081 is about 7630.2739793536. The cubic root of 58221081 is about 387.5788665004.

It can be divided in two parts, 5822 and 1081, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 58221081 in words is "fifty-eight million, two hundred twenty-one thousand, eighty-one".