515506005552 has 80 divisors (see below), whose sum is σ = 1344460913280. Its totient is φ = 170192541696.

The previous prime is 515506005541. The next prime is 515506005559. The reversal of 515506005552 is 255500605515.

It is a self number, because there is not a number n which added to its sum of digits gives 515506005552.

It is not an unprimeable number, because it can be changed into a prime (515506005559) 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, 34193088 + ... + 34208160.

It is an arithmetic number, because the mean of its divisors is an integer number (16805761416).

Almost surely, 2^515506005552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515506005552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672230456640).

515506005552 is an abundant number, since it is smaller than the sum of its proper divisors (828954907728).

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

515506005552 is a wasteful number, since it uses less digits than its factorization.

515506005552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21850 (or 21844 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 39.

The spelling of 515506005552 in words is "five hundred fifteen billion, five hundred six million, five thousand, five hundred fifty-two".