1057616506 has 4 divisors (see below), whose sum is σ = 1586424762. Its totient is φ = 528808252.

The previous prime is 1057616501. The next prime is 1057616629. The reversal of 1057616506 is 6056167501.

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

It can be written as a sum of positive squares in only one way, i.e., 826850025 + 230766481 = 28755^2 + 15191^2 .

It is a super-2 number, since 2×1057616506² = 2237105347527296072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057616501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264404125 + ... + 264404128.

Almost surely, 2^1057616506 is an apocalyptic number.

1057616506 is a deficient number, since it is larger than the sum of its proper divisors (528808256).

1057616506 is an equidigital number, since it uses as much as digits as its factorization.

1057616506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528808255.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1057616506 is about 32521.0163740311. The cubic root of 1057616506 is about 1018.8480221539.

The spelling of 1057616506 in words is "one billion, fifty-seven million, six hundred sixteen thousand, five hundred six".