50778205404506 has 8 divisors (see below), whose sum is σ = 76168766373780. Its totient is φ = 25388616613248.

The previous prime is 50778205404503. The next prime is 50778205404559. The reversal of 50778205404506 is 60540450287705.

It can be written as a sum of positive squares in 2 ways, for example, as 48974677272481 + 1803528132025 = 6998191^2 + 1342955^2 .

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

It is a super-2 number, since 2×50778205404506² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50778205404503) 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, 242913911 + ... + 243122858.

Almost surely, 2^{50778205404506} is an apocalyptic number.

50778205404506 is a deficient number, since it is larger than the sum of its proper divisors (25390560969274).

50778205404506 is a wasteful number, since it uses less digits than its factorization.

50778205404506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486089008.

The product of its (nonzero) digits is 9408000, while the sum is 53.

The spelling of 50778205404506 in words is "fifty trillion, seven hundred seventy-eight billion, two hundred five million, four hundred four thousand, five hundred six".