91350625 has 10 divisors (see below), whose sum is σ = 114152522. Its totient is φ = 73080000.

The previous prime is 91350599. The next prime is 91350631. The reversal of 91350625 is 52605319.

It can be written as a sum of positive squares in 5 ways, for example, as 24830289 + 66520336 = 4983^2 + 8156^2 .

It is not a de Polignac number, because 91350625 - 2⁵ = 91350593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 72456 + ... + 73705.

Almost surely, 2^91350625 is an apocalyptic number.

It is an amenable number.

91350625 is a deficient number, since it is larger than the sum of its proper divisors (22801897).

91350625 is an equidigital number, since it uses as much as digits as its factorization.

91350625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146181 (or 146166 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 91350625 is about 9557.7520892729. The cubic root of 91350625 is about 450.3710930705.

The spelling of 91350625 in words is "ninety-one million, three hundred fifty thousand, six hundred twenty-five".