1049555557 has 2 divisors, whose sum is σ = 1049555558. Its totient is φ = 1049555556.

The previous prime is 1049555531. The next prime is 1049555599. The reversal of 1049555557 is 7555559401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 763472161 + 286083396 = 27631^2 + 16914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049555557 - 2²³ = 1041166949 is a prime.

It is a super-2 number, since 2×1049555557² = 2203133734459160498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1049559557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524777778 + 524777779.

It is an arithmetic number, because the mean of its divisors is an integer number (524777779).

Almost surely, 2^1049555557 is an apocalyptic number.

It is an amenable number.

1049555557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1049555557 is an equidigital number, since it uses as much as digits as its factorization.

1049555557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787500, while the sum is 46.

The square root of 1049555557 is about 32396.8448618071. The cubic root of 1049555557 is about 1016.2529301491.

The spelling of 1049555557 in words is "one billion, forty-nine million, five hundred fifty-five thousand, five hundred fifty-seven".