1135550557 has 2 divisors, whose sum is σ = 1135550558. Its totient is φ = 1135550556.

The previous prime is 1135550543. The next prime is 1135550621. The reversal of 1135550557 is 7550555311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 601524676 + 534025881 = 24526^2 + 23109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1135550557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135550657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567775278 + 567775279.

It is an arithmetic number, because the mean of its divisors is an integer number (567775279).

Almost surely, 2^1135550557 is an apocalyptic number.

It is an amenable number.

1135550557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135550557 is an equidigital number, since it uses as much as digits as its factorization.

1135550557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65625, while the sum is 37.

The square root of 1135550557 is about 33697.9310492499. The cubic root of 1135550557 is about 1043.2830660205.

The spelling of 1135550557 in words is "one billion, one hundred thirty-five million, five hundred fifty thousand, five hundred fifty-seven".