1005852557 has 2 divisors, whose sum is σ = 1005852558. Its totient is φ = 1005852556.

The previous prime is 1005852553. The next prime is 1005852581. The reversal of 1005852557 is 7552585001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1005460681 + 391876 = 31709^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005852557 - 2² = 1005852553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1005852557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005852553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502926278 + 502926279.

It is an arithmetic number, because the mean of its divisors is an integer number (502926279).

Almost surely, 2^1005852557 is an apocalyptic number.

It is an amenable number.

1005852557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005852557 is an equidigital number, since it uses as much as digits as its factorization.

1005852557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70000, while the sum is 38.

The square root of 1005852557 is about 31715.1786531307. The cubic root of 1005852557 is about 1001.9470588348.

The spelling of 1005852557 in words is "one billion, five million, eight hundred fifty-two thousand, five hundred fifty-seven".