49910091 has 16 divisors (see below), whose sum is σ = 82967808. Its totient is φ = 25927200.

The previous prime is 49910071. The next prime is 49910101. The reversal of 49910091 is 19001994.

It is not a de Polignac number, because 49910091 - 2⁷ = 49909963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (49910071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107800 + ... + 108261.

It is an arithmetic number, because the mean of its divisors is an integer number (5185488).

Almost surely, 2^49910091 is an apocalyptic number.

49910091 is a deficient number, since it is larger than the sum of its proper divisors (33057717).

49910091 is a wasteful number, since it uses less digits than its factorization.

49910091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216082.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 49910091 is about 7064.7074249398. The cubic root of 49910091 is about 368.1821989826.

The spelling of 49910091 in words is "forty-nine million, nine hundred ten thousand, ninety-one".