5215501212 has 24 divisors (see below), whose sum is σ = 12316125696. Its totient is φ = 1717554288.

The previous prime is 5215501177. The next prime is 5215501267. The reversal of 5215501212 is 2121055125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2617228 + ... + 2619219.

It is an arithmetic number, because the mean of its divisors is an integer number (513171904).

Almost surely, 2^5215501212 is an apocalyptic number.

It is an amenable number.

5215501212 is an abundant number, since it is smaller than the sum of its proper divisors (7100624484).

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

5215501212 is a wasteful number, since it uses less digits than its factorization.

5215501212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236537 (or 5236535 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 5215501212 is about 72218.4270944750. The cubic root of 5215501212 is about 1734.1980100849.

Adding to 5215501212 its reverse (2121055125), we get a palindrome (7336556337).

The spelling of 5215501212 in words is "five billion, two hundred fifteen million, five hundred one thousand, two hundred twelve".