49991700223 has 4 divisors (see below), whose sum is σ = 52622842360. Its totient is φ = 47360558088.

The previous prime is 49991700181. The next prime is 49991700247. The reversal of 49991700223 is 32200719994.

It is a happy number.

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

It is not a de Polignac number, because 49991700223 - 2¹³ = 49991692031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49991700923) 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, 1315571040 + ... + 1315571077.

It is an arithmetic number, because the mean of its divisors is an integer number (13155710590).

Almost surely, 2^49991700223 is an apocalyptic number.

49991700223 is a deficient number, since it is larger than the sum of its proper divisors (2631142137).

49991700223 is a wasteful number, since it uses less digits than its factorization.

49991700223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631142136.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 49991700223 in words is "forty-nine billion, nine hundred ninety-one million, seven hundred thousand, two hundred twenty-three".