5205251212 has 24 divisors (see below), whose sum is σ = 10418726304. Its totient is φ = 2229059712.

The previous prime is 5205251201. The next prime is 5205251221. The reversal of 5205251212 is 2121525025.

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, 37033 + ... + 108544.

It is an arithmetic number, because the mean of its divisors is an integer number (434113596).

Almost surely, 2^5205251212 is an apocalyptic number.

It is an amenable number.

5205251212 is an abundant number, since it is smaller than the sum of its proper divisors (5213475092).

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

5205251212 is a wasteful number, since it uses less digits than its factorization.

5205251212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146865 (or 146863 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 5205251212 is about 72147.4269257054. The cubic root of 5205251212 is about 1733.0611946359.

Adding to 5205251212 its reverse (2121525025), we get a palindrome (7326776237).

The spelling of 5205251212 in words is "five billion, two hundred five million, two hundred fifty-one thousand, two hundred twelve".