49895991 has 12 divisors (see below), whose sum is σ = 72138768. Its totient is φ = 33233184.

The previous prime is 49895983. The next prime is 49896047. The reversal of 49895991 is 19959894.

49895991 is a `hidden beast` number, since 49 + 8 + 9 + 599 + 1 = 666.

It is not a de Polignac number, because 49895991 - 2³ = 49895983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49895971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12091 + ... + 15683.

It is an arithmetic number, because the mean of its divisors is an integer number (6011564).

Almost surely, 2^49895991 is an apocalyptic number.

49895991 is a deficient number, since it is larger than the sum of its proper divisors (22242777).

49895991 is a wasteful number, since it uses less digits than its factorization.

49895991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142 (or 5139 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 54.

The square root of 49895991 is about 7063.7094362665. The cubic root of 49895991 is about 368.1475242448.

The spelling of 49895991 in words is "forty-nine million, eight hundred ninety-five thousand, nine hundred ninety-one".