1005452557 has 2 divisors, whose sum is σ = 1005452558. Its totient is φ = 1005452556.

The previous prime is 1005452549. The next prime is 1005452593. The reversal of 1005452557 is 7552545001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1000203876 + 5248681 = 31626^2 + 2291^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005452557 - 2³ = 1005452549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005452527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502726278 + 502726279.

It is an arithmetic number, because the mean of its divisors is an integer number (502726279).

Almost surely, 2^1005452557 is an apocalyptic number.

It is an amenable number.

1005452557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005452557 is an equidigital number, since it uses as much as digits as its factorization.

1005452557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35000, while the sum is 34.

The square root of 1005452557 is about 31708.8718973097. The cubic root of 1005452557 is about 1001.8142255950.

Adding to 1005452557 its reverse (7552545001), we get a palindrome (8557997558).

It can be divided in two parts, 1005452 and 557, that added together give a square (1006009 = 1003²).

The spelling of 1005452557 in words is "one billion, five million, four hundred fifty-two thousand, five hundred fifty-seven".