505212111530 has 32 divisors (see below), whose sum is σ = 1051815106944. Its totient is φ = 171128644416.

The previous prime is 505212111529. The next prime is 505212111557. The reversal of 505212111530 is 35111212505.

It is a self number, because there is not a number n which added to its sum of digits gives 505212111530.

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, 43471997 + ... + 43483616.

It is an arithmetic number, because the mean of its divisors is an integer number (32869222092).

Almost surely, 2^505212111530 is an apocalyptic number.

505212111530 is an abundant number, since it is smaller than the sum of its proper divisors (546602995414).

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

505212111530 is a wasteful number, since it uses less digits than its factorization.

505212111530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86955710.

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 505212111530 in words is "five hundred five billion, two hundred twelve million, one hundred eleven thousand, five hundred thirty".