2557465837 has 2 divisors, whose sum is σ = 2557465838. Its totient is φ = 2557465836.

The previous prime is 2557465831. The next prime is 2557465843. The reversal of 2557465837 is 7385647552.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2557465831) and next prime (2557465843).

It can be written as a sum of positive squares in only one way, i.e., 1344615561 + 1212850276 = 36669^2 + 34826^2 .

It is a cyclic number.

It is not a de Polignac number, because 2557465837 - 2¹¹ = 2557463789 is a prime.

It is a super-2 number, since 2×2557465837² = 13081263014844221138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2557465831) 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 as a sum of consecutive naturals, namely, 1278732918 + 1278732919.

It is an arithmetic number, because the mean of its divisors is an integer number (1278732919).

Almost surely, 2^2557465837 is an apocalyptic number.

It is an amenable number.

2557465837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557465837 is an equidigital number, since it uses as much as digits as its factorization.

2557465837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056000, while the sum is 52.

The square root of 2557465837 is about 50571.3934650806. The cubic root of 2557465837 is about 1367.5292168793.

The spelling of 2557465837 in words is "two billion, five hundred fifty-seven million, four hundred sixty-five thousand, eight hundred thirty-seven".