91448925 has 24 divisors (see below), whose sum is σ = 153275904. Its totient is φ = 48101760.

The previous prime is 91448911. The next prime is 91448939. The reversal of 91448925 is 52984419.

It is an interprime number because it is at equal distance from previous prime (91448911) and next prime (91448939).

It is not a de Polignac number, because 91448925 - 2⁵ = 91448893 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2877 + ... + 13826.

It is an arithmetic number, because the mean of its divisors is an integer number (6386496).

Almost surely, 2^91448925 is an apocalyptic number.

It is an amenable number.

91448925 is a deficient number, since it is larger than the sum of its proper divisors (61826979).

91448925 is a wasteful number, since it uses less digits than its factorization.

91448925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16789 (or 16784 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 91448925 is about 9562.8931291738. The cubic root of 91448925 is about 450.5325793152.

The spelling of 91448925 in words is "ninety-one million, four hundred forty-eight thousand, nine hundred twenty-five".