50535131323440 has 80 divisors (see below), whose sum is σ = 157343007304800. Its totient is φ = 13417187690496.

The previous prime is 50535131323423. The next prime is 50535131323463. The reversal of 50535131323440 is 4432313153505.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459689685 + ... + 459799604.

It is an arithmetic number, because the mean of its divisors is an integer number (1966787591310).

Almost surely, 2^{50535131323440} is an apocalyptic number.

It is an amenable number.

50535131323440 is an abundant number, since it is smaller than the sum of its proper divisors (106807875981360).

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

50535131323440 is a wasteful number, since it uses less digits than its factorization.

50535131323440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919489534 (or 919489528 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 39.

Adding to 50535131323440 its reverse (4432313153505), we get a palindrome (54967444476945).

The spelling of 50535131323440 in words is "fifty trillion, five hundred thirty-five billion, one hundred thirty-one million, three hundred twenty-three thousand, four hundred forty".