91425504 has 24 divisors (see below), whose sum is σ = 239992200. Its totient is φ = 30475136.

The previous prime is 91425497. The next prime is 91425563. The reversal of 91425504 is 40552419.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476079 + ... + 476270.

It is an arithmetic number, because the mean of its divisors is an integer number (9999675).

Almost surely, 2^91425504 is an apocalyptic number.

It is an amenable number.

91425504 is an abundant number, since it is smaller than the sum of its proper divisors (148566696).

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

91425504 is a wasteful number, since it uses less digits than its factorization.

91425504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952362 (or 952354 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 91425504 is about 9561.6684736504. The cubic root of 91425504 is about 450.4941140389.

The spelling of 91425504 in words is "ninety-one million, four hundred twenty-five thousand, five hundred four".