91520058 has 16 divisors (see below), whose sum is σ = 209188800. Its totient is φ = 26148576.

The previous prime is 91520053. The next prime is 91520063. The reversal of 91520058 is 85002519.

It is an interprime number because it is at equal distance from previous prime (91520053) and next prime (91520063).

It is not an unprimeable number, because it can be changed into a prime (91520053) 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, 1089483 + ... + 1089566.

It is an arithmetic number, because the mean of its divisors is an integer number (13074300).

Almost surely, 2^91520058 is an apocalyptic number.

91520058 is an abundant number, since it is smaller than the sum of its proper divisors (117668742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91520058 is a wasteful number, since it uses less digits than its factorization.

91520058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179061.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 91520058 is about 9566.6116258579. The cubic root of 91520058 is about 450.6493637322.

The spelling of 91520058 in words is "ninety-one million, five hundred twenty thousand, fifty-eight".