2544201520 has 120 divisors (see below), whose sum is σ = 6901902000. Its totient is φ = 869654016.

The previous prime is 2544201503. The next prime is 2544201529. The reversal of 2544201520 is 251024452.

It is a super-2 number, since 2×2544201520² = 12945922748740620800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544201529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1641706 + ... + 1643254.

It is an arithmetic number, because the mean of its divisors is an integer number (57515850).

Almost surely, 2^2544201520 is an apocalyptic number.

2544201520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2544201520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3450951000).

2544201520 is an abundant number, since it is smaller than the sum of its proper divisors (4357700480).

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

2544201520 is a wasteful number, since it uses less digits than its factorization.

2544201520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2544201520 is about 50440.0785090586. The cubic root of 2544201520 is about 1365.1608839516.

Adding to 2544201520 its reverse (251024452), we get a palindrome (2795225972).

The spelling of 2544201520 in words is "two billion, five hundred forty-four million, two hundred one thousand, five hundred twenty".