50000401021 has 4 divisors (see below), whose sum is σ = 50002499232. Its totient is φ = 49998302812.

The previous prime is 50000401013. The next prime is 50000401027. The reversal of 50000401021 is 12010400005.

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 50000401021 - 2³ = 50000401013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50000400992 and 50000401010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50000401027) 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, 1012945 + ... + 1061158.

It is an arithmetic number, because the mean of its divisors is an integer number (12500624808).

Almost surely, 2^50000401021 is an apocalyptic number.

It is an amenable number.

50000401021 is a deficient number, since it is larger than the sum of its proper divisors (2098211).

50000401021 is a wasteful number, since it uses less digits than its factorization.

50000401021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098210.

The product of its (nonzero) digits is 40, while the sum is 13.

Adding to 50000401021 its reverse (12010400005), we get a palindrome (62010801026).

The spelling of 50000401021 in words is "fifty billion, four hundred one thousand, twenty-one".