50112021 has 4 divisors (see below), whose sum is σ = 66816032. Its totient is φ = 33408012.

The previous prime is 50112019. The next prime is 50112061. The reversal of 50112021 is 12021105.

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 not a de Polignac number, because 50112021 - 2¹ = 50112019 is a prime.

It is a super-2 number, since 2×50112021² = 5022429297408882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50111988 and 50112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50112061) 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, 8352001 + ... + 8352006.

It is an arithmetic number, because the mean of its divisors is an integer number (16704008).

Almost surely, 2^50112021 is an apocalyptic number.

It is an amenable number.

50112021 is a deficient number, since it is larger than the sum of its proper divisors (16704011).

50112021 is a wasteful number, since it uses less digits than its factorization.

50112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16704010.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 50112021 is about 7078.9844610650. The cubic root of 50112021 is about 368.6780705819.

Adding to 50112021 its reverse (12021105), we get a palindrome (62133126).

The spelling of 50112021 in words is "fifty million, one hundred twelve thousand, twenty-one".