505212153330 has 32 divisors (see below), whose sum is σ = 1213624710144. Its totient is φ = 134599291776.

The previous prime is 505212153169. The next prime is 505212153401. The reversal of 505212153330 is 33351212505.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 7713667 + ... + 7778886.

It is an arithmetic number, because the mean of its divisors is an integer number (37925772192).

Almost surely, 2^505212153330 is an apocalyptic number.

505212153330 is an abundant number, since it is smaller than the sum of its proper divisors (708412556814).

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

505212153330 is a wasteful number, since it uses less digits than its factorization.

505212153330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15493650.

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 505212153330 its reverse (33351212505), we get a palindrome (538563365835).

The spelling of 505212153330 in words is "five hundred five billion, two hundred twelve million, one hundred fifty-three thousand, three hundred thirty".