31533240054 has 16 divisors (see below), whose sum is σ = 63068747760. Its totient is φ = 10510702080.

The previous prime is 31533240049. The next prime is 31533240073. The reversal of 31533240054 is 45004233513.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125794 + ... + 280874.

It is an arithmetic number, because the mean of its divisors is an integer number (3941796735).

Almost surely, 2^31533240054 is an apocalyptic number.

31533240054 is an abundant number, since it is smaller than the sum of its proper divisors (31535507706).

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

31533240054 is a wasteful number, since it uses less digits than its factorization.

31533240054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188975.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 31533240054 its reverse (45004233513), we get a palindrome (76537473567).

The spelling of 31533240054 in words is "thirty-one billion, five hundred thirty-three million, two hundred forty thousand, fifty-four".