50391628 has 12 divisors (see below), whose sum is σ = 100783312. Its totient is φ = 21596400.

The previous prime is 50391623. The next prime is 50391631. The reversal of 50391628 is 82619305.

50391628 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 50391593 and 50391602.

It is not an unprimeable number, because it can be changed into a prime (50391623) 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, 899823 + ... + 899878.

Almost surely, 2^50391628 is an apocalyptic number.

It is an amenable number.

50391628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50391628 is a wasteful number, since it uses less digits than its factorization.

50391628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799712 (or 1799710 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 50391628 is about 7098.7060792795. The cubic root of 50391628 is about 369.3624960862.

The spelling of 50391628 in words is "fifty million, three hundred ninety-one thousand, six hundred twenty-eight".