2531005425 has 36 divisors (see below), whose sum is σ = 4882033884. Its totient is φ = 1246032000.

The previous prime is 2531005417. The next prime is 2531005429. The reversal of 2531005425 is 5245001352.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 919544976 + 1611460449 = 30324^2 + 40143^2 .

It is not a de Polignac number, because 2531005425 - 2³ = 2531005417 is a prime.

It is a super-2 number, since 2×2531005425² = 12811976922758861250, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2531005429) 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 35 ways as a sum of consecutive naturals, for example, 429726 + ... + 435575.

Almost surely, 2^2531005425 is an apocalyptic number.

2531005425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2531005425 is a deficient number, since it is larger than the sum of its proper divisors (2351028459).

2531005425 is a wasteful number, since it uses less digits than its factorization.

2531005425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865330 (or 865322 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2531005425 is about 50309.0988291383. The cubic root of 2531005425 is about 1362.7965496529.

Adding to 2531005425 its reverse (5245001352), we get a palindrome (7776006777).

The spelling of 2531005425 in words is "two billion, five hundred thirty-one million, five thousand, four hundred twenty-five".