50778634 has 4 divisors (see below), whose sum is σ = 76167954. Its totient is φ = 25389316.

The previous prime is 50778551. The next prime is 50778649. The reversal of 50778634 is 43687705.

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

It can be written as a sum of positive squares in only one way, i.e., 45603009 + 5175625 = 6753^2 + 2275^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12694657 + ... + 12694660.

Almost surely, 2^50778634 is an apocalyptic number.

50778634 is a deficient number, since it is larger than the sum of its proper divisors (25389320).

50778634 is a wasteful number, since it uses less digits than its factorization.

50778634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25389319.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 50778634 is about 7125.9128538034. The cubic root of 50778634 is about 370.3056495579.

The spelling of 50778634 in words is "fifty million, seven hundred seventy-eight thousand, six hundred thirty-four".