2385856537 has 2 divisors, whose sum is σ = 2385856538. Its totient is φ = 2385856536.

The previous prime is 2385856531. The next prime is 2385856549. The reversal of 2385856537 is 7356585832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2267569161 + 118287376 = 47619^2 + 10876^2 .

It is a cyclic number.

It is not a de Polignac number, because 2385856537 - 2⁷ = 2385856409 is a prime.

It is a super-2 number, since 2×2385856537² = 11384622830291264738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2385856531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1192928268 + 1192928269.

It is an arithmetic number, because the mean of its divisors is an integer number (1192928269).

Almost surely, 2^2385856537 is an apocalyptic number.

It is an amenable number.

2385856537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2385856537 is an equidigital number, since it uses as much as digits as its factorization.

2385856537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048000, while the sum is 52.

The square root of 2385856537 is about 48845.2304426952. The cubic root of 2385856537 is about 1336.2306890135.

The spelling of 2385856537 in words is "two billion, three hundred eighty-five million, eight hundred fifty-six thousand, five hundred thirty-seven".