1057505066 has 16 divisors (see below), whose sum is σ = 1630785960. Its totient is φ = 513938880.

The previous prime is 1057505051. The next prime is 1057505069. The reversal of 1057505066 is 6605057501.

It can be written as a sum of positive squares in 4 ways, for example, as 1057225225 + 279841 = 32515^2 + 529^2 .

It is a super-2 number, since 2×1057505066² = 2236633929231328712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057505069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71780 + ... + 85248.

Almost surely, 2^1057505066 is an apocalyptic number.

1057505066 is a deficient number, since it is larger than the sum of its proper divisors (573280894).

1057505066 is a wasteful number, since it uses less digits than its factorization.

1057505066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14569.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 1057505066 is about 32519.3029753099. The cubic root of 1057505066 is about 1018.8122358958.

The spelling of 1057505066 in words is "one billion, fifty-seven million, five hundred five thousand, sixty-six".