5135252520 has 128 divisors (see below), whose sum is σ = 15698240640. Its totient is φ = 1343569920.

The previous prime is 5135252519. The next prime is 5135252537. The reversal of 5135252520 is 252525315.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2258104 + ... + 2260376.

It is an arithmetic number, because the mean of its divisors is an integer number (122642505).

Almost surely, 2^5135252520 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 5135252520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7849120320).

5135252520 is an abundant number, since it is smaller than the sum of its proper divisors (10562988120).

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

5135252520 is a wasteful number, since it uses less digits than its factorization.

5135252520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635 (or 2631 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 5135252520 is about 71660.6762457626. The cubic root of 5135252520 is about 1725.2575427273.

Adding to 5135252520 its reverse (252525315), we get a palindrome (5387777835).

The spelling of 5135252520 in words is "five billion, one hundred thirty-five million, two hundred fifty-two thousand, five hundred twenty".