91895625 has 90 divisors (see below), whose sum is σ = 181474722. Its totient is φ = 44640000.

The previous prime is 91895623. The next prime is 91895633. The reversal of 91895625 is 52659819.

91895625 is a `hidden beast` number, since 9 + 1 + 89 + 562 + 5 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 23386896 + 68508729 = 4836^2 + 8277^2 .

It is not a de Polignac number, because 91895625 - 2¹ = 91895623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (91895621) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 2964360 + ... + 2964390.

Almost surely, 2^91895625 is an apocalyptic number.

It is an amenable number.

91895625 is a deficient number, since it is larger than the sum of its proper divisors (89579097).

91895625 is a wasteful number, since it uses less digits than its factorization.

91895625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 56 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 91895625 is about 9586.2205795611. The cubic root of 91895625 is about 451.2649593596.

The spelling of 91895625 in words is "ninety-one million, eight hundred ninety-five thousand, six hundred twenty-five".