50136431 has 2 divisors, whose sum is σ = 50136432. Its totient is φ = 50136430.

The previous prime is 50136413. The next prime is 50136439. The reversal of 50136431 is 13463105.

It is a happy number.

Together with previous prime (50136413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50136431 - 2⁶ = 50136367 is a prime.

It is a super-2 number, since 2×50136431² = 5027323426835522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 50136397 and 50136406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50136439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25068215 + 25068216.

It is an arithmetic number, because the mean of its divisors is an integer number (25068216).

Almost surely, 2^50136431 is an apocalyptic number.

50136431 is a deficient number, since it is larger than the sum of its proper divisors (1).

50136431 is an equidigital number, since it uses as much as digits as its factorization.

50136431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 50136431 is about 7080.7083685179. The cubic root of 50136431 is about 368.7379229598.

Adding to 50136431 its reverse (13463105), we get a palindrome (63599536).

The spelling of 50136431 in words is "fifty million, one hundred thirty-six thousand, four hundred thirty-one".