58961581 has 8 divisors (see below), whose sum is σ = 70314624. Its totient is φ = 48341040.

The previous prime is 58961549. The next prime is 58961621. The reversal of 58961581 is 18516985.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 58961581 - 2⁵ = 58961549 is a prime.

It is a super-2 number, since 2×58961581² = 6952936068039122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58961381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182950 + ... + 183271.

It is an arithmetic number, because the mean of its divisors is an integer number (8789328).

Almost surely, 2^58961581 is an apocalyptic number.

It is an amenable number.

58961581 is a deficient number, since it is larger than the sum of its proper divisors (11353043).

58961581 is a wasteful number, since it uses less digits than its factorization.

58961581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366251.

The product of its digits is 86400, while the sum is 43.

The square root of 58961581 is about 7678.6444767289. The cubic root of 58961581 is about 389.2151232229.

The spelling of 58961581 in words is "fifty-eight million, nine hundred sixty-one thousand, five hundred eighty-one".