50440031 has 2 divisors, whose sum is σ = 50440032. Its totient is φ = 50440030.

The previous prime is 50440009. The next prime is 50440043. The reversal of 50440031 is 13004405.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50440031 is a prime.

It is a super-2 number, since 2×50440031² = 5088393454561922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50439991 and 50440009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50440001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25220015 + 25220016.

It is an arithmetic number, because the mean of its divisors is an integer number (25220016).

Almost surely, 2^50440031 is an apocalyptic number.

50440031 is a deficient number, since it is larger than the sum of its proper divisors (1).

50440031 is an equidigital number, since it uses as much as digits as its factorization.

50440031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 50440031 is about 7102.1145442748. The cubic root of 50440031 is about 369.4807202994.

Adding to 50440031 its reverse (13004405), we get a palindrome (63444436).

The spelling of 50440031 in words is "fifty million, four hundred forty thousand, thirty-one".