50021142 has 16 divisors (see below), whose sum is σ = 100681392. Its totient is φ = 16567200.

The previous prime is 50021093. The next prime is 50021149. The reversal of 50021142 is 24112005.

It is a super-2 number, since 2×50021142² = 5004229293968328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50021149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25609 + ... + 27492.

It is an arithmetic number, because the mean of its divisors is an integer number (6292587).

Almost surely, 2^50021142 is an apocalyptic number.

50021142 is an abundant number, since it is smaller than the sum of its proper divisors (50660250).

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

50021142 is a wasteful number, since it uses less digits than its factorization.

50021142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53263.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 50021142 is about 7072.5626190229. The cubic root of 50021142 is about 368.4550677430.

Adding to 50021142 its reverse (24112005), we get a palindrome (74133147).

The spelling of 50021142 in words is "fifty million, twenty-one thousand, one hundred forty-two".