50778311 has 8 divisors (see below), whose sum is σ = 51217920. Its totient is φ = 50341048.

The previous prime is 50778307. The next prime is 50778331. The reversal of 50778311 is 11387705.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50778311 - 2² = 50778307 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 (50778331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105770 + ... + 106248.

It is an arithmetic number, because the mean of its divisors is an integer number (6402240).

Almost surely, 2^50778311 is an apocalyptic number.

50778311 is a deficient number, since it is larger than the sum of its proper divisors (439609).

50778311 is a wasteful number, since it uses less digits than its factorization.

50778311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 50778311 is about 7125.8901900043. The cubic root of 50778311 is about 370.3048643918.

The spelling of 50778311 in words is "fifty million, seven hundred seventy-eight thousand, three hundred eleven".