91509052 has 6 divisors (see below), whose sum is σ = 160140848. Its totient is φ = 45754524.

The previous prime is 91509049. The next prime is 91509071. The reversal of 91509052 is 25090519.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11438628 + ... + 11438635.

Almost surely, 2^91509052 is an apocalyptic number.

It is an amenable number.

91509052 is a deficient number, since it is larger than the sum of its proper divisors (68631796).

91509052 is a wasteful number, since it uses less digits than its factorization.

91509052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22877267 (or 22877265 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 91509052 is about 9566.0363787726. The cubic root of 91509052 is about 450.6312983090.

The spelling of 91509052 in words is "ninety-one million, five hundred nine thousand, fifty-two".