50040600021 has 6 divisors (see below), whose sum is σ = 72280866710. Its totient is φ = 33360400008.

The previous prime is 50040600011. The next prime is 50040600031. The reversal of 50040600021 is 12000604005.

It is a happy number.

50040600021 is a `hidden beast` number, since 5 + 0 + 0 + 40 + 600 + 0 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (50040600011) and next prime (50040600031).

It can be written as a sum of positive squares in only one way, i.e., 33984922500 + 16055677521 = 184350^2 + 126711^2 .

It is not a de Polignac number, because 50040600021 - 2¹⁰ = 50040598997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50040599967 and 50040600003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50040600011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2780033326 + ... + 2780033343.

Almost surely, 2^50040600021 is an apocalyptic number.

It is an amenable number.

50040600021 is a deficient number, since it is larger than the sum of its proper divisors (22240266689).

50040600021 is a wasteful number, since it uses less digits than its factorization.

50040600021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560066675 (or 5560066672 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The spelling of 50040600021 in words is "fifty billion, forty million, six hundred thousand, twenty-one".