50825021 has 4 divisors (see below), whose sum is σ = 54734652. Its totient is φ = 46915392.

The previous prime is 50824999. The next prime is 50825051. The reversal of 50825021 is 12052805.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33477796 + 17347225 = 5786^2 + 4165^2 .

It is a cyclic number.

It is not a de Polignac number, because 50825021 - 2⁶ = 50824957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50825051) 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, 1954796 + ... + 1954821.

It is an arithmetic number, because the mean of its divisors is an integer number (13683663).

Almost surely, 2^50825021 is an apocalyptic number.

It is an amenable number.

50825021 is a deficient number, since it is larger than the sum of its proper divisors (3909631).

50825021 is a wasteful number, since it uses less digits than its factorization.

50825021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909630.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 50825021 is about 7129.1669218780. The cubic root of 50825021 is about 370.4183750546.

Adding to 50825021 its reverse (12052805), we get a palindrome (62877826).

The spelling of 50825021 in words is "fifty million, eight hundred twenty-five thousand, twenty-one".