1058917257 has 24 divisors (see below), whose sum is σ = 1542240648. Its totient is φ = 700108800.

The previous prime is 1058917243. The next prime is 1058917259. The reversal of 1058917257 is 7527198501.

1058917257 is a `hidden beast` number, since 1 + 0 + 589 + 17 + 2 + 57 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 698069241 + 360848016 = 26421^2 + 18996^2 .

It is not a de Polignac number, because 1058917257 - 2⁴ = 1058917241 is a prime.

It is a super-2 number, since 2×1058917257² = 2242611514344808098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1058917259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 997507 + ... + 998567.

It is an arithmetic number, because the mean of its divisors is an integer number (64260027).

Almost surely, 2^1058917257 is an apocalyptic number.

It is an amenable number.

1058917257 is a deficient number, since it is larger than the sum of its proper divisors (483323391).

1058917257 is a wasteful number, since it uses less digits than its factorization.

1058917257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 45.

The square root of 1058917257 is about 32541.0088503722. The cubic root of 1058917257 is about 1019.2655410549.

The spelling of 1058917257 in words is "one billion, fifty-eight million, nine hundred seventeen thousand, two hundred fifty-seven".