50121215534 has 8 divisors (see below), whose sum is σ = 80965040520. Its totient is φ = 23132868696.

The previous prime is 50121215503. The next prime is 50121215537. The reversal of 50121215534 is 43551212105.

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

It is a junction number, because it is equal to n+sod(n) for n = 50121215497 and 50121215506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50121215537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963869504 + ... + 963869555.

It is an arithmetic number, because the mean of its divisors is an integer number (10120630065).

Almost surely, 2^50121215534 is an apocalyptic number.

50121215534 is a deficient number, since it is larger than the sum of its proper divisors (30843824986).

50121215534 is a wasteful number, since it uses less digits than its factorization.

50121215534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927739074.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 50121215534 its reverse (43551212105), we get a palindrome (93672427639).

The spelling of 50121215534 in words is "fifty billion, one hundred twenty-one million, two hundred fifteen thousand, five hundred thirty-four".