2530403125 has 12 divisors (see below), whose sum is σ = 3162805380. Its totient is φ = 2024320000.

The previous prime is 2530403093. The next prime is 2530403129. The reversal of 2530403125 is 5213040352.

It can be written as a sum of positive squares in 6 ways, for example, as 1852269444 + 678133681 = 43038^2 + 26041^2 .

It is not a de Polignac number, because 2530403125 - 2⁵ = 2530403093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 2530403125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530403129) 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 11 ways as a sum of consecutive naturals, for example, 401740 + ... + 407989.

It is an arithmetic number, because the mean of its divisors is an integer number (263567115).

Almost surely, 2^2530403125 is an apocalyptic number.

2530403125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2530403125 is a deficient number, since it is larger than the sum of its proper divisors (632402255).

2530403125 is an frugal number, since it uses more digits than its factorization.

2530403125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809754 (or 809734 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2530403125 is about 50303.1124782553. The cubic root of 2530403125 is about 1362.6884401151.

Adding to 2530403125 its reverse (5213040352), we get a palindrome (7743443477).

The spelling of 2530403125 in words is "two billion, five hundred thirty million, four hundred three thousand, one hundred twenty-five".