50817538 has 4 divisors (see below), whose sum is σ = 76226310. Its totient is φ = 25408768.

The previous prime is 50817523. The next prime is 50817551. The reversal of 50817538 is 83571805.

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., 50794129 + 23409 = 7127^2 + 153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50817497 and 50817506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12704383 + ... + 12704386.

Almost surely, 2^50817538 is an apocalyptic number.

50817538 is a deficient number, since it is larger than the sum of its proper divisors (25408772).

50817538 is a wasteful number, since it uses less digits than its factorization.

50817538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25408771.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 50817538 is about 7128.6420866810. The cubic root of 50817538 is about 370.4001951851.

The spelling of 50817538 in words is "fifty million, eight hundred seventeen thousand, five hundred thirty-eight".