50021002519 has 8 divisors (see below), whose sum is σ = 51410499440. Its totient is φ = 48669034248.

The previous prime is 50021002511. The next prime is 50021002529. The reversal of 50021002519 is 91520012005.

It is not a de Polignac number, because 50021002519 - 2³ = 50021002511 is a prime.

It is a super-2 number, since 2×50021002519² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50021002493 and 50021002502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50021002511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443109 + ... + 544414.

It is an arithmetic number, because the mean of its divisors is an integer number (6426312430).

Almost surely, 2^50021002519 is an apocalyptic number.

50021002519 is a deficient number, since it is larger than the sum of its proper divisors (1389496921).

50021002519 is an frugal number, since it uses more digits than its factorization.

50021002519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987634 (or 987560 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 50021002519 in words is "fifty billion, twenty-one million, two thousand, five hundred nineteen".