50778011 has 4 divisors (see below), whose sum is σ = 50938512. Its totient is φ = 50617512.

The previous prime is 50777983. The next prime is 50778017. The reversal of 50778011 is 11087705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11087705 = 5 ⋅2217541.

It is a cyclic number.

It is not a de Polignac number, because 50778011 - 2¹⁸ = 50515867 is a prime.

It is a super-2 number, since 2×50778011² = 5156812802232242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50778017) 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, 79775 + ... + 80408.

It is an arithmetic number, because the mean of its divisors is an integer number (12734628).

Almost surely, 2^50778011 is an apocalyptic number.

50778011 is a deficient number, since it is larger than the sum of its proper divisors (160501).

50778011 is a wasteful number, since it uses less digits than its factorization.

50778011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160500.

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 50778011 is about 7125.8691399716. The cubic root of 50778011 is about 370.3041351324.

The spelling of 50778011 in words is "fifty million, seven hundred seventy-eight thousand, eleven".