50431540 has 24 divisors (see below), whose sum is σ = 106587432. Its totient is φ = 20042880.

The previous prime is 50431523. The next prime is 50431543. The reversal of 50431540 is 4513405.

It can be written as a sum of positive squares in 4 ways, for example, as 813604 + 49617936 = 902^2 + 7044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50431543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4891 + ... + 11170.

It is an arithmetic number, because the mean of its divisors is an integer number (4441143).

Almost surely, 2^50431540 is an apocalyptic number.

It is an amenable number.

50431540 is an abundant number, since it is smaller than the sum of its proper divisors (56155892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50431540 is a wasteful number, since it uses less digits than its factorization.

50431540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16227 (or 16225 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 50431540 is about 7101.5167394015. The cubic root of 50431540 is about 369.4599865238.

Adding to 50431540 its reverse (4513405), we get a palindrome (54944945).

The spelling of 50431540 in words is "fifty million, four hundred thirty-one thousand, five hundred forty".