2520819225 has 60 divisors (see below), whose sum is σ = 4682148240. Its totient is φ = 1340776800.

The previous prime is 2520819221. The next prime is 2520819253. The reversal of 2520819225 is 5229180252.

It is not a de Polignac number, because 2520819225 - 2² = 2520819221 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2520819225.

It is not an unprimeable number, because it can be changed into a prime (2520819221) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 846990 + ... + 849960.

It is an arithmetic number, because the mean of its divisors is an integer number (78035804).

Almost surely, 2^2520819225 is an apocalyptic number.

2520819225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2520819225 is a deficient number, since it is larger than the sum of its proper divisors (2161329015).

2520819225 is a wasteful number, since it uses less digits than its factorization.

2520819225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412 (or 3398 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 2520819225 is about 50207.7606053088. The cubic root of 2520819225 is about 1360.9658697105.

Adding to 2520819225 its reverse (5229180252), we get a palindrome (7749999477).

The spelling of 2520819225 in words is "two billion, five hundred twenty million, eight hundred nineteen thousand, two hundred twenty-five".