91625501 has 8 divisors (see below), whose sum is σ = 100137600. Its totient is φ = 83143840.

The previous prime is 91625497. The next prime is 91625503. The reversal of 91625501 is 10552619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91625501 - 2² = 91625497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91625503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061 + ... + 13578.

It is an arithmetic number, because the mean of its divisors is an integer number (12517200).

Almost surely, 2^91625501 is an apocalyptic number.

It is an amenable number.

91625501 is a deficient number, since it is larger than the sum of its proper divisors (8512099).

91625501 is a wasteful number, since it uses less digits than its factorization.

91625501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15219.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 91625501 is about 9572.1210293226. The cubic root of 91625501 is about 450.8223661853.

The spelling of 91625501 in words is "ninety-one million, six hundred twenty-five thousand, five hundred one".