6522540120 has 128 divisors (see below), whose sum is σ = 22443264000. Its totient is φ = 1683227520.

The previous prime is 6522540119. The next prime is 6522540131. The reversal of 6522540120 is 210452256.

6522540120 is a `hidden beast` number, since 652 + 2 + 5 + 4 + 0 + 1 + 2 + 0 = 666.

It is a super-3 number, since 3×6522540120³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63930 + ... + 130889.

It is an arithmetic number, because the mean of its divisors is an integer number (175338000).

Almost surely, 2^6522540120 is an apocalyptic number.

6522540120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6522540120 is an abundant number, since it is smaller than the sum of its proper divisors (15920723880).

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

6522540120 is a wasteful number, since it uses less digits than its factorization.

6522540120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194870 (or 194860 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 6522540120 is about 80762.2443967477. The cubic root of 6522540120 is about 1868.4103011953.

Adding to 6522540120 its reverse (210452256), we get a palindrome (6732992376).

The spelling of 6522540120 in words is "six billion, five hundred twenty-two million, five hundred forty thousand, one hundred twenty".