31523055505 has 16 divisors (see below), whose sum is σ = 37924360704. Its totient is φ = 25154047360.

The previous prime is 31523055503. The next prime is 31523055517. The reversal of 31523055505 is 50555032513.

It is not a de Polignac number, because 31523055505 - 2¹ = 31523055503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31523055503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5746494 + ... + 5751976.

It is an arithmetic number, because the mean of its divisors is an integer number (2370272544).

Almost surely, 2^31523055505 is an apocalyptic number.

It is an amenable number.

31523055505 is a deficient number, since it is larger than the sum of its proper divisors (6401305199).

31523055505 is a wasteful number, since it uses less digits than its factorization.

31523055505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8216.

The product of its (nonzero) digits is 56250, while the sum is 34.

The spelling of 31523055505 in words is "thirty-one billion, five hundred twenty-three million, fifty-five thousand, five hundred five".