5120525511 has 32 divisors (see below), whose sum is σ = 8093606400. Its totient is φ = 3188315520.

The previous prime is 5120525503. The next prime is 5120525537. The reversal of 5120525511 is 1155250215.

5120525511 is a `hidden beast` number, since 5 + 120 + 5 + 25 + 511 = 666.

It is not a de Polignac number, because 5120525511 - 2³ = 5120525503 is a prime.

It is a super-2 number, since 2×5120525511² = 52439563017603622242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120525551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17550 + ... + 102708.

It is an arithmetic number, because the mean of its divisors is an integer number (252925200).

Almost surely, 2^5120525511 is an apocalyptic number.

5120525511 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5120525511 is a deficient number, since it is larger than the sum of its proper divisors (2973080889).

5120525511 is a wasteful number, since it uses less digits than its factorization.

5120525511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85316 (or 85310 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 5120525511 is about 71557.8473055192. The cubic root of 5120525511 is about 1723.6067176711.

Adding to 5120525511 its reverse (1155250215), we get a palindrome (6275775726).

The spelling of 5120525511 in words is "five billion, one hundred twenty million, five hundred twenty-five thousand, five hundred eleven".