91529252 has 6 divisors (see below), whose sum is σ = 160176198. Its totient is φ = 45764624.

The previous prime is 91529233. The next prime is 91529279. The reversal of 91529252 is 25292519.

It can be written as a sum of positive squares in only one way, i.e., 87310336 + 4218916 = 9344^2 + 2054^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11441153 + ... + 11441160.

It is an arithmetic number, because the mean of its divisors is an integer number (26696033).

Almost surely, 2^91529252 is an apocalyptic number.

It is an amenable number.

91529252 is a deficient number, since it is larger than the sum of its proper divisors (68646946).

91529252 is a wasteful number, since it uses less digits than its factorization.

91529252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22882317 (or 22882315 counting only the distinct ones).

The product of its digits is 16200, while the sum is 35.

The square root of 91529252 is about 9567.0921392030. The cubic root of 91529252 is about 450.6644537995.

The spelling of 91529252 in words is "ninety-one million, five hundred twenty-nine thousand, two hundred fifty-two".