50142621 has 4 divisors (see below), whose sum is σ = 66856832. Its totient is φ = 33428412.

The previous prime is 50142619. The next prime is 50142623. The reversal of 50142621 is 12624105.

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 an interprime number because it is at equal distance from previous prime (50142619) and next prime (50142623).

It is not a de Polignac number, because 50142621 - 2¹ = 50142619 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50142623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8357101 + ... + 8357106.

It is an arithmetic number, because the mean of its divisors is an integer number (16714208).

Almost surely, 2^50142621 is an apocalyptic number.

It is an amenable number.

50142621 is a deficient number, since it is larger than the sum of its proper divisors (16714211).

50142621 is a wasteful number, since it uses less digits than its factorization.

50142621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16714210.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 50142621 is about 7081.1454581868. The cubic root of 50142621 is about 368.7530975130.

Adding to 50142621 its reverse (12624105), we get a palindrome (62766726).

The spelling of 50142621 in words is "fifty million, one hundred forty-two thousand, six hundred twenty-one".