2557132425 has 72 divisors (see below), whose sum is σ = 4658373720. Its totient is φ = 1340697600.

The previous prime is 2557132411. The next prime is 2557132429. The reversal of 2557132425 is 5242317552.

2557132425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 1742144121 + 814988304 = 41739^2 + 28548^2 .

It is not a de Polignac number, because 2557132425 - 2¹⁷ = 2557001353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2557132425.

It is not an unprimeable number, because it can be changed into a prime (2557132429) 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, 5546695 + ... + 5547155.

It is an arithmetic number, because the mean of its divisors is an integer number (64699635).

Almost surely, 2^2557132425 is an apocalyptic number.

2557132425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2557132425 is a deficient number, since it is larger than the sum of its proper divisors (2101241295).

2557132425 is a wasteful number, since it uses less digits than its factorization.

2557132425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 835 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 2557132425 is about 50568.0969090196. The cubic root of 2557132425 is about 1367.4697868946.

Adding to 2557132425 its reverse (5242317552), we get a palindrome (7799449977).

The spelling of 2557132425 in words is "two billion, five hundred fifty-seven million, one hundred thirty-two thousand, four hundred twenty-five".