58142521 has 2 divisors, whose sum is σ = 58142522. Its totient is φ = 58142520.

The previous prime is 58142507. The next prime is 58142549. The reversal of 58142521 is 12524185.

It is an a-pointer prime, because the next prime (58142549) can be obtained adding 58142521 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51194025 + 6948496 = 7155^2 + 2636^2 .

It is a cyclic number.

It is not a de Polignac number, because 58142521 - 2²¹ = 56045369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 58142521.

It is not a weakly prime, because it can be changed into another prime (58146521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29071260 + 29071261.

It is an arithmetic number, because the mean of its divisors is an integer number (29071261).

Almost surely, 2^58142521 is an apocalyptic number.

It is an amenable number.

58142521 is a deficient number, since it is larger than the sum of its proper divisors (1).

58142521 is an equidigital number, since it uses as much as digits as its factorization.

58142521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3200, while the sum is 28.

The square root of 58142521 is about 7625.1243268553. The cubic root of 58142521 is about 387.4044628852.

The spelling of 58142521 in words is "fifty-eight million, one hundred forty-two thousand, five hundred twenty-one".