5211505512 has 96 divisors (see below), whose sum is σ = 14456033280. Its totient is φ = 1695346560.

The previous prime is 5211505451. The next prime is 5211505543. The reversal of 5211505512 is 2155051125.

5211505512 is a `hidden beast` number, since 52 + 11 + 50 + 551 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1294062 + ... + 1298082.

It is an arithmetic number, because the mean of its divisors is an integer number (150583680).

Almost surely, 2^5211505512 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 5211505512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7228016640).

5211505512 is an abundant number, since it is smaller than the sum of its proper divisors (9244527768).

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

5211505512 is a wasteful number, since it uses less digits than its factorization.

5211505512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463 (or 4456 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 5211505512 is about 72190.7578018128. The cubic root of 5211505512 is about 1733.7550289901.

Adding to 5211505512 its reverse (2155051125), we get a palindrome (7366556637).

The spelling of 5211505512 in words is "five billion, two hundred eleven million, five hundred five thousand, five hundred twelve".