2521042425 has 72 divisors (see below), whose sum is σ = 4952683008. Its totient is φ = 1215696000.

The previous prime is 2521042423. The next prime is 2521042463. The reversal of 2521042425 is 5242401252.

2521042425 is a `hidden beast` number, since 2 + 5 + 210 + 424 + 25 = 666.

It is not a de Polignac number, because 2521042425 - 2¹ = 2521042423 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2521042423) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 470059 + ... + 475391.

It is an arithmetic number, because the mean of its divisors is an integer number (68787264).

Almost surely, 2^2521042425 is an apocalyptic number.

2521042425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2521042425 is a deficient number, since it is larger than the sum of its proper divisors (2431640583).

2521042425 is a wasteful number, since it uses less digits than its factorization.

2521042425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551 (or 5543 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2521042425 is about 50209.9833200530. The cubic root of 2521042425 is about 1361.0060363640.

Adding to 2521042425 its reverse (5242401252), we get a palindrome (7763443677).

It can be divided in two parts, 25 and 21042425, that multiplied together give a palindrome (526060625).

The spelling of 2521042425 in words is "two billion, five hundred twenty-one million, forty-two thousand, four hundred twenty-five".