1355541057 has 36 divisors (see below), whose sum is σ = 2172017484. Its totient is φ = 813795840.

The previous prime is 1355541023. The next prime is 1355541071. The reversal of 1355541057 is 7501455531.

It is a happy number.

1355541057 is a `hidden beast` number, since 13 + 55 + 541 + 0 + 57 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 890664336 + 464876721 = 29844^2 + 21561^2 .

It is not a de Polignac number, because 1355541057 - 2¹² = 1355536961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1355561057) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51493 + ... + 73229.

It is an arithmetic number, because the mean of its divisors is an integer number (60333819).

Almost surely, 2^1355541057 is an apocalyptic number.

It is an amenable number.

1355541057 is a deficient number, since it is larger than the sum of its proper divisors (816476427).

1355541057 is a wasteful number, since it uses less digits than its factorization.

1355541057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21810 (or 21794 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The square root of 1355541057 is about 36817.6731611328. The cubic root of 1355541057 is about 1106.7194913072.

Adding to 1355541057 its reverse (7501455531), we get a palindrome (8856996588).

The spelling of 1355541057 in words is "one billion, three hundred fifty-five million, five hundred forty-one thousand, fifty-seven".