72800050 has 12 divisors (see below), whose sum is σ = 135408186. Its totient is φ = 29120000.

The previous prime is 72800033. The next prime is 72800087. The reversal of 72800050 is 5000827.

It can be written as a sum of positive squares in 3 ways, for example, as 54626881 + 18173169 = 7391^2 + 4263^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72799994 and 72800030.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 727951 + ... + 728050.

Almost surely, 2^72800050 is an apocalyptic number.

72800050 is a deficient number, since it is larger than the sum of its proper divisors (62608136).

72800050 is a wasteful number, since it uses less digits than its factorization.

72800050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456013 (or 1456008 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 72800050 is about 8532.2945331253. The cubic root of 72800050 is about 417.5519913261.

Adding to 72800050 its reverse (5000827), we get a palindrome (77800877).

The spelling of 72800050 in words is "seventy-two million, eight hundred thousand, fifty".