2500057831 has 2 divisors, whose sum is σ = 2500057832. Its totient is φ = 2500057830.

The previous prime is 2500057817. The next prime is 2500057871. The reversal of 2500057831 is 1387500052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2500057831 - 2⁹ = 2500057319 is a prime.

It is a super-2 number, since 2×2500057831² = 12500578316688849122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2500057793 and 2500057802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500057801) 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 as a sum of consecutive naturals, namely, 1250028915 + 1250028916.

It is an arithmetic number, because the mean of its divisors is an integer number (1250028916).

Almost surely, 2^2500057831 is an apocalyptic number.

2500057831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500057831 is an equidigital number, since it uses as much as digits as its factorization.

2500057831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 2500057831 is about 50000.5783066556. The cubic root of 2500057831 is about 1357.2192733824.

Adding to 2500057831 its reverse (1387500052), we get a palindrome (3887557883).

The spelling of 2500057831 in words is "two billion, five hundred million, fifty-seven thousand, eight hundred thirty-one".