1005232557 has 32 divisors (see below), whose sum is σ = 1576102912. Its totient is φ = 558036864.

The previous prime is 1005232531. The next prime is 1005232583. The reversal of 1005232557 is 7552325001.

It is an interprime number because it is at equal distance from previous prime (1005232531) and next prime (1005232583).

It is not a de Polignac number, because 1005232557 - 2²⁰ = 1004183981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005232357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97818 + ... + 107604.

It is an arithmetic number, because the mean of its divisors is an integer number (49253216).

Almost surely, 2^1005232557 is an apocalyptic number.

It is an amenable number.

1005232557 is a deficient number, since it is larger than the sum of its proper divisors (570870355).

1005232557 is an equidigital number, since it uses as much as digits as its factorization.

1005232557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9937.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 1005232557 is about 31705.4026468676. The cubic root of 1005232557 is about 1001.7411522959.

Adding to 1005232557 its reverse (7552325001), we get a palindrome (8557557558).

The spelling of 1005232557 in words is "one billion, five million, two hundred thirty-two thousand, five hundred fifty-seven".