50418131 has 4 divisors (see below), whose sum is σ = 50544264. Its totient is φ = 50292000.

The previous prime is 50418127. The next prime is 50418133. The reversal of 50418131 is 13181405.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50418131 - 2² = 50418127 is a prime.

It is a super-2 number, since 2×50418131² = 5083975867066322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50418097 and 50418106.

It is not an unprimeable number, because it can be changed into a prime (50418133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62465 + ... + 63266.

It is an arithmetic number, because the mean of its divisors is an integer number (12636066).

Almost surely, 2^50418131 is an apocalyptic number.

50418131 is a deficient number, since it is larger than the sum of its proper divisors (126133).

50418131 is a wasteful number, since it uses less digits than its factorization.

50418131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126132.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 50418131 is about 7100.5725825457. The cubic root of 50418131 is about 369.4272389740.

Adding to 50418131 its reverse (13181405), we get a palindrome (63599536).

The spelling of 50418131 in words is "fifty million, four hundred eighteen thousand, one hundred thirty-one".