91253252 has 6 divisors (see below), whose sum is σ = 159693198. Its totient is φ = 45626624.

The previous prime is 91253251. The next prime is 91253269. The reversal of 91253252 is 25235219.

It can be written as a sum of positive squares in only one way, i.e., 48664576 + 42588676 = 6976^2 + 6526^2 .

It is not an unprimeable number, because it can be changed into a prime (91253251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11406653 + ... + 11406660.

It is an arithmetic number, because the mean of its divisors is an integer number (26615533).

Almost surely, 2^91253252 is an apocalyptic number.

It is an amenable number.

91253252 is a deficient number, since it is larger than the sum of its proper divisors (68439946).

91253252 is a wasteful number, since it uses less digits than its factorization.

91253252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22813317 (or 22813315 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 91253252 is about 9552.6568032145. The cubic root of 91253252 is about 450.2110154378.

The spelling of 91253252 in words is "ninety-one million, two hundred fifty-three thousand, two hundred fifty-two".