91625 has 8 divisors (see below), whose sum is σ = 114504. Its totient is φ = 73200.

The previous prime is 91621. The next prime is 91631. The reversal of 91625 is 52619.

91625 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 4 ways, for example, as 1024 + 90601 = 32^2 + 301^2 .

It is not a de Polignac number, because 91625 - 2² = 91621 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 91625.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 91625.

It is not an unprimeable number, because it can be changed into a prime (91621) 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, 242 + ... + 491.

It is an arithmetic number, because the mean of its divisors is an integer number (14313).

2⁹¹⁶²⁵ is an apocalyptic number.

It is an amenable number.

91625 is a deficient number, since it is larger than the sum of its proper divisors (22879).

91625 is an equidigital number, since it uses as much as digits as its factorization.

91625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 738 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 91625 is about 302.6962173533. The cubic root of 91625 is about 45.0821544498.

The spelling of 91625 in words is "ninety-one thousand, six hundred twenty-five".