2521423325 has 12 divisors (see below), whose sum is σ = 3185558388. Its totient is φ = 1979078400.

The previous prime is 2521423321. The next prime is 2521423327. The reversal of 2521423325 is 5233241252.

It can be written as a sum of positive squares in 6 ways, for example, as 96550276 + 2424873049 = 9826^2 + 49243^2 .

It is not a de Polignac number, because 2521423325 - 2² = 2521423321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521423321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 950156 + ... + 952805.

It is an arithmetic number, because the mean of its divisors is an integer number (265463199).

Almost surely, 2^2521423325 is an apocalyptic number.

2521423325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2521423325 is a deficient number, since it is larger than the sum of its proper divisors (664135063).

2521423325 is a wasteful number, since it uses less digits than its factorization.

2521423325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903024 (or 1903019 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 2521423325 is about 50213.7762471615. The cubic root of 2521423325 is about 1361.0745769391.

Adding to 2521423325 its reverse (5233241252), we get a palindrome (7754664577).

The spelling of 2521423325 in words is "two billion, five hundred twenty-one million, four hundred twenty-three thousand, three hundred twenty-five".