50728456 has 8 divisors (see below), whose sum is σ = 95115870. Its totient is φ = 25364224.

The previous prime is 50728451. The next prime is 50728471. The reversal of 50728456 is 65482705.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42120100 + 8608356 = 6490^2 + 2934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (50728451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170521 + ... + 3170536.

Almost surely, 2^50728456 is an apocalyptic number.

It is an amenable number.

50728456 is a deficient number, since it is larger than the sum of its proper divisors (44387414).

50728456 is a wasteful number, since it uses less digits than its factorization.

50728456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341063 (or 6341059 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 50728456 is about 7122.3911715097. The cubic root of 50728456 is about 370.1836341927.

The spelling of 50728456 in words is "fifty million, seven hundred twenty-eight thousand, four hundred fifty-six".