1061600557 has 2 divisors, whose sum is σ = 1061600558. Its totient is φ = 1061600556.

The previous prime is 1061600543. The next prime is 1061600587. The reversal of 1061600557 is 7550061601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001785801 + 59814756 = 31651^2 + 7734^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061600557 - 2¹¹ = 1061598509 is a prime.

It is a super-2 number, since 2×1061600557² = 2253991485245420498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061600587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530800278 + 530800279.

It is an arithmetic number, because the mean of its divisors is an integer number (530800279).

Almost surely, 2^1061600557 is an apocalyptic number.

It is an amenable number.

1061600557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061600557 is an equidigital number, since it uses as much as digits as its factorization.

1061600557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1061600557 is about 32582.2122790949. The cubic root of 1061600557 is about 1020.1257556727.

The spelling of 1061600557 in words is "one billion, sixty-one million, six hundred thousand, five hundred fifty-seven".