49019899 has 4 divisors (see below), whose sum is σ = 49108464. Its totient is φ = 48931336.

The previous prime is 49019881. The next prime is 49019903. The reversal of 49019899 is 99891094.

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

It is not a de Polignac number, because 49019899 - 2⁹ = 49019387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49089899) 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, 43447 + ... + 44560.

It is an arithmetic number, because the mean of its divisors is an integer number (12277116).

Almost surely, 2^49019899 is an apocalyptic number.

49019899 is a deficient number, since it is larger than the sum of its proper divisors (88565).

49019899 is an equidigital number, since it uses as much as digits as its factorization.

49019899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88564.

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 49019899 is about 7001.4212128681. The cubic root of 49019899 is about 365.9800993489.

The spelling of 49019899 in words is "forty-nine million, nineteen thousand, eight hundred ninety-nine".