1057889006 has 4 divisors (see below), whose sum is σ = 1586833512. Its totient is φ = 528944502.

The previous prime is 1057889003. The next prime is 1057889009. The reversal of 1057889006 is 6009887501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1057889003) and next prime (1057889009).

It is a super-2 number, since 2×1057889006² = 2238258298031336072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057889003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264472250 + ... + 264472253.

It is an arithmetic number, because the mean of its divisors is an integer number (396708378).

Almost surely, 2^1057889006 is an apocalyptic number.

1057889006 is a deficient number, since it is larger than the sum of its proper divisors (528944506).

1057889006 is an equidigital number, since it uses as much as digits as its factorization.

1057889006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528944505.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 1057889006 is about 32525.2057026547. The cubic root of 1057889006 is about 1018.9355183440.

The spelling of 1057889006 in words is "one billion, fifty-seven million, eight hundred eighty-nine thousand, six".