505223525540 has 24 divisors (see below), whose sum is σ = 1061148658752. Its totient is φ = 202055266400.

The previous prime is 505223525503. The next prime is 505223525557. The reversal of 505223525540 is 45525322505.

It is a junction number, because it is equal to n+sod(n) for n = 505223525494 and 505223525503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2012486 + ... + 2249565.

It is an arithmetic number, because the mean of its divisors is an integer number (44214527448).

Almost surely, 2^505223525540 is an apocalyptic number.

It is an amenable number.

505223525540 is an abundant number, since it is smaller than the sum of its proper divisors (555925133212).

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

505223525540 is a wasteful number, since it uses less digits than its factorization.

505223525540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267987 (or 4267985 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 38.

The spelling of 505223525540 in words is "five hundred five billion, two hundred twenty-three million, five hundred twenty-five thousand, five hundred forty".