91995050 has 36 divisors (see below), whose sum is σ = 199052550. Its totient is φ = 31540320.

The previous prime is 91994971. The next prime is 91995053. The reversal of 91995050 is 5059919.

It can be written as a sum of positive squares in 3 ways, for example, as 58967041 + 33028009 = 7679^2 + 5747^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91994995 and 91995013.

It is not an unprimeable number, because it can be changed into a prime (91995053) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16325 + ... + 21224.

Almost surely, 2^91995050 is an apocalyptic number.

91995050 is an abundant number, since it is smaller than the sum of its proper divisors (107057500).

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

91995050 is a wasteful number, since it uses less digits than its factorization.

91995050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37575 (or 37563 counting only the distinct ones).

The product of its (nonzero) digits is 18225, while the sum is 38.

The square root of 91995050 is about 9591.4050065671. The cubic root of 91995050 is about 451.4276470003.

The spelling of 91995050 in words is "ninety-one million, nine hundred ninety-five thousand, fifty".