50507431 has 4 divisors (see below), whose sum is σ = 54392632. Its totient is φ = 46622232.

The previous prime is 50507419. The next prime is 50507437. The reversal of 50507431 is 13470505.

50507431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 50507431 - 2²³ = 42118823 is a prime.

It is a super-2 number, since 2×50507431² = 5102001172439522, 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 = 50507396 and 50507405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50507437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1942581 + ... + 1942606.

It is an arithmetic number, because the mean of its divisors is an integer number (13598158).

Almost surely, 2^50507431 is an apocalyptic number.

50507431 is a deficient number, since it is larger than the sum of its proper divisors (3885201).

50507431 is a wasteful number, since it uses less digits than its factorization.

50507431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885200.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 50507431 is about 7106.8580258789. The cubic root of 50507431 is about 369.6452187223.

Adding to 50507431 its reverse (13470505), we get a palindrome (63977936).

The spelling of 50507431 in words is "fifty million, five hundred seven thousand, four hundred thirty-one".