50113521 has 24 divisors (see below), whose sum is σ = 75295584. Its totient is φ = 32091840.

The previous prime is 50113519. The next prime is 50113523. The reversal of 50113521 is 12531105.

It is an interprime number because it is at equal distance from previous prime (50113519) and next prime (50113523).

It is not a de Polignac number, because 50113521 - 2¹ = 50113519 is a prime.

It is a super-2 number, since 2×50113521² = 5022729974034882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50113494 and 50113503.

It is not an unprimeable number, because it can be changed into a prime (50113523) 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 23 ways as a sum of consecutive naturals, for example, 23710 + ... + 25736.

It is an arithmetic number, because the mean of its divisors is an integer number (3137316).

Almost surely, 2^50113521 is an apocalyptic number.

It is an amenable number.

50113521 is a deficient number, since it is larger than the sum of its proper divisors (25182063).

50113521 is a wasteful number, since it uses less digits than its factorization.

50113521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 50113521 is about 7079.0904076724. The cubic root of 50113521 is about 368.6817490844.

Adding to 50113521 its reverse (12531105), we get a palindrome (62644626).

The spelling of 50113521 in words is "fifty million, one hundred thirteen thousand, five hundred twenty-one".