49618799 has 4 divisors (see below), whose sum is σ = 49748736. Its totient is φ = 49488864.

The previous prime is 49618787. The next prime is 49618831. The reversal of 49618799 is 99781694.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49618799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49618799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49618729) 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, 64394 + ... + 65159.

It is an arithmetic number, because the mean of its divisors is an integer number (12437184).

Almost surely, 2^49618799 is an apocalyptic number.

49618799 is a deficient number, since it is larger than the sum of its proper divisors (129937).

49618799 is a wasteful number, since it uses less digits than its factorization.

49618799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129936.

The product of its digits is 979776, while the sum is 53.

The square root of 49618799 is about 7044.0612575417. The cubic root of 49618799 is about 367.4645227758.

The spelling of 49618799 in words is "forty-nine million, six hundred eighteen thousand, seven hundred ninety-nine".