5215452520 has 32 divisors (see below), whose sum is σ = 11764362600. Its totient is φ = 2080919808.

The previous prime is 5215452497. The next prime is 5215452521. The reversal of 5215452520 is 252545125.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5215439524 + 12996 = 72218^2 + 114^2 .

It is not an unprimeable number, because it can be changed into a prime (5215452521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148335 + ... + 180094.

Almost surely, 2^5215452520 is an apocalyptic number.

It is an amenable number.

5215452520 is an abundant number, since it is smaller than the sum of its proper divisors (6548910080).

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

5215452520 is a wasteful number, since it uses less digits than its factorization.

5215452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328837 (or 328833 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 5215452520 is about 72218.0899775119. The cubic root of 5215452520 is about 1734.1926132349.

Adding to 5215452520 its reverse (252545125), we get a palindrome (5467997645).

The spelling of 5215452520 in words is "five billion, two hundred fifteen million, four hundred fifty-two thousand, five hundred twenty".