1355333253 has 4 divisors (see below), whose sum is σ = 1807111008. Its totient is φ = 903555500.

The previous prime is 1355333233. The next prime is 1355333303. The reversal of 1355333253 is 3523335531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3523335531 = 3 ⋅1174445177.

It is a cyclic number.

It is not a de Polignac number, because 1355333253 - 2¹³ = 1355325061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355333233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225888873 + ... + 225888878.

It is an arithmetic number, because the mean of its divisors is an integer number (451777752).

Almost surely, 2^1355333253 is an apocalyptic number.

It is an amenable number.

1355333253 is a deficient number, since it is larger than the sum of its proper divisors (451777755).

1355333253 is an equidigital number, since it uses as much as digits as its factorization.

1355333253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451777754.

The product of its digits is 60750, while the sum is 33.

The square root of 1355333253 is about 36814.8509843514. The cubic root of 1355333253 is about 1106.6629351719.

Adding to 1355333253 its reverse (3523335531), we get a palindrome (4878668784).

The spelling of 1355333253 in words is "one billion, three hundred fifty-five million, three hundred thirty-three thousand, two hundred fifty-three".