5251215132 has 72 divisors (see below), whose sum is σ = 13364625456. Its totient is φ = 1738485504.

The previous prime is 5251215131. The next prime is 5251215157. The reversal of 5251215132 is 2315121525.

5251215132 is a `hidden beast` number, since 5 + 2 + 512 + 15 + 132 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 5251215096 and 5251215105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251215131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6349303 + ... + 6350129.

It is an arithmetic number, because the mean of its divisors is an integer number (185619798).

Almost surely, 2^5251215132 is an apocalyptic number.

It is an amenable number.

5251215132 is an abundant number, since it is smaller than the sum of its proper divisors (8113410324).

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

5251215132 is a wasteful number, since it uses less digits than its factorization.

5251215132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827 (or 1822 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 5251215132 is about 72465.2684532390. The cubic root of 5251215132 is about 1738.1474019790.

Adding to 5251215132 its reverse (2315121525), we get a palindrome (7566336657).

The spelling of 5251215132 in words is "five billion, two hundred fifty-one million, two hundred fifteen thousand, one hundred thirty-two".