49899147 has 4 divisors (see below), whose sum is σ = 66532200. Its totient is φ = 33266096.

The previous prime is 49899139. The next prime is 49899203. The reversal of 49899147 is 74199894.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49899147 - 2³ = 49899139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49899147.

It is not an unprimeable number, because it can be changed into a prime (49899107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8316522 + ... + 8316527.

It is an arithmetic number, because the mean of its divisors is an integer number (16633050).

Almost surely, 2^49899147 is an apocalyptic number.

49899147 is a deficient number, since it is larger than the sum of its proper divisors (16633053).

49899147 is a wasteful number, since it uses less digits than its factorization.

49899147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16633052.

The product of its digits is 653184, while the sum is 51.

The square root of 49899147 is about 7063.9328281065. The cubic root of 49899147 is about 368.1552860514.

The spelling of 49899147 in words is "forty-nine million, eight hundred ninety-nine thousand, one hundred forty-seven".