50215531021 has 8 divisors (see below), whose sum is σ = 51387779520. Its totient is φ = 49043484672.

The previous prime is 50215530913. The next prime is 50215531027. The reversal of 50215531021 is 12013551205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50215531021 - 2¹⁹ = 50215006733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50215531027) 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, 528600 + ... + 616318.

It is an arithmetic number, because the mean of its divisors is an integer number (6423472440).

Almost surely, 2^50215531021 is an apocalyptic number.

It is an amenable number.

50215531021 is a deficient number, since it is larger than the sum of its proper divisors (1172248499).

50215531021 is a wasteful number, since it uses less digits than its factorization.

50215531021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101075.

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 50215531021 in words is "fifty billion, two hundred fifteen million, five hundred thirty-one thousand, twenty-one".