1055749613 has 8 divisors (see below), whose sum is σ = 1060696728. Its totient is φ = 1050812224.

The previous prime is 1055749577. The next prime is 1055749661. The reversal of 1055749613 is 3169475501.

It can be written as a sum of positive squares in 4 ways, for example, as 7414729 + 1048334884 = 2723^2 + 32378^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1055749613 - 2¹⁸ = 1055487469 is a prime.

It is a super-2 number, since 2×1055749613² = 2229214490699299538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055749663) 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, 295031 + ... + 298587.

It is an arithmetic number, because the mean of its divisors is an integer number (132587091).

Almost surely, 2^1055749613 is an apocalyptic number.

It is an amenable number.

1055749613 is a deficient number, since it is larger than the sum of its proper divisors (4947115).

1055749613 is a wasteful number, since it uses less digits than its factorization.

1055749613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 1055749613 is about 32492.3008265035. The cubic root of 1055749613 is about 1018.2481826387.

The spelling of 1055749613 in words is "one billion, fifty-five million, seven hundred forty-nine thousand, six hundred thirteen".