58721081 has 2 divisors, whose sum is σ = 58721082. Its totient is φ = 58721080.

The previous prime is 58721071. The next prime is 58721083. The reversal of 58721081 is 18012785.

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., 35295481 + 23425600 = 5941^2 + 4840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58721081 is a prime.

It is a super-2 number, since 2×58721081² = 6896330707617122, which contains 22 as substring.

Together with 58721083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (58721083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29360540 + 29360541.

It is an arithmetic number, because the mean of its divisors is an integer number (29360541).

Almost surely, 2^58721081 is an apocalyptic number.

It is an amenable number.

58721081 is a deficient number, since it is larger than the sum of its proper divisors (1).

58721081 is an equidigital number, since it uses as much as digits as its factorization.

58721081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 58721081 is about 7662.9681586184. The cubic root of 58721081 is about 388.6852086822.

The spelling of 58721081 in words is "fifty-eight million, seven hundred twenty-one thousand, eighty-one".