49137799 has 4 divisors (see below), whose sum is σ = 49151880. Its totient is φ = 49123720.

The previous prime is 49137797. The next prime is 49137811. The reversal of 49137799 is 99773194.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 49137799 - 2¹ = 49137797 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49137793) 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, 2544 + ... + 10234.

It is an arithmetic number, because the mean of its divisors is an integer number (12287970).

Almost surely, 2^49137799 is an apocalyptic number.

49137799 is a deficient number, since it is larger than the sum of its proper divisors (14081).

49137799 is an equidigital number, since it uses as much as digits as its factorization.

49137799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14080.

The product of its digits is 428652, while the sum is 49.

The square root of 49137799 is about 7009.8358753968. The cubic root of 49137799 is about 366.2732762525.

The spelling of 49137799 in words is "forty-nine million, one hundred thirty-seven thousand, seven hundred ninety-nine".