50728101 has 4 divisors (see below), whose sum is σ = 67637472. Its totient is φ = 33818732.

The previous prime is 50728079. The next prime is 50728103. The reversal of 50728101 is 10182705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50728101 - 2⁶ = 50728037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50728103) 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, 8454681 + ... + 8454686.

It is an arithmetic number, because the mean of its divisors is an integer number (16909368).

Almost surely, 2^50728101 is an apocalyptic number.

It is an amenable number.

50728101 is a deficient number, since it is larger than the sum of its proper divisors (16909371).

50728101 is a wasteful number, since it uses less digits than its factorization.

50728101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16909370.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 50728101 is about 7122.3662500604. The cubic root of 50728101 is about 370.1827706701.

The spelling of 50728101 in words is "fifty million, seven hundred twenty-eight thousand, one hundred one".