91356252 has 48 divisors (see below), whose sum is σ = 234917760. Its totient is φ = 27453888.

The previous prime is 91356247. The next prime is 91356257. The reversal of 91356252 is 25265319.

It is an interprime number because it is at equal distance from previous prime (91356247) and next prime (91356257).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91356257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102 + ... + 13517.

It is an arithmetic number, because the mean of its divisors is an integer number (4894120).

Almost surely, 2^91356252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91356252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117458880).

91356252 is an abundant number, since it is smaller than the sum of its proper divisors (143561508).

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

91356252 is a wasteful number, since it uses less digits than its factorization.

91356252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13682 (or 13680 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 91356252 is about 9558.0464531200. The cubic root of 91356252 is about 450.3803401742.

The spelling of 91356252 in words is "ninety-one million, three hundred fifty-six thousand, two hundred fifty-two".