50553779 has 4 divisors (see below), whose sum is σ = 51786840. Its totient is φ = 49320720.

The previous prime is 50553773. The next prime is 50553787. The reversal of 50553779 is 97735505.

It is a happy number.

50553779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 50553779 - 2⁸ = 50553523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1233019 = 50553779 / (5 + 0 + 5 + 5 + 3 + 7 + 7 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50553773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616469 + ... + 616550.

It is an arithmetic number, because the mean of its divisors is an integer number (12946710).

Almost surely, 2^50553779 is an apocalyptic number.

50553779 is a deficient number, since it is larger than the sum of its proper divisors (1233061).

50553779 is a wasteful number, since it uses less digits than its factorization.

50553779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233060.

The product of its (nonzero) digits is 165375, while the sum is 41.

The square root of 50553779 is about 7110.1180721560. The cubic root of 50553779 is about 369.7582521146.

The spelling of 50553779 in words is "fifty million, five hundred fifty-three thousand, seven hundred seventy-nine".