1253533413 has 16 divisors (see below), whose sum is σ = 1829823552. Its totient is φ = 757008000.

The previous prime is 1253533363. The next prime is 1253533427. The reversal of 1253533413 is 3143353521.

It is not a de Polignac number, because 1253533413 - 2⁶ = 1253533349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253533213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58318 + ... + 76863.

It is an arithmetic number, because the mean of its divisors is an integer number (114363972).

Almost surely, 2^1253533413 is an apocalyptic number.

It is an amenable number.

1253533413 is a deficient number, since it is larger than the sum of its proper divisors (576290139).

1253533413 is a wasteful number, since it uses less digits than its factorization.

1253533413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135476.

The product of its digits is 16200, while the sum is 30.

The square root of 1253533413 is about 35405.2738020764. The cubic root of 1253533413 is about 1078.2313911425.

Adding to 1253533413 its reverse (3143353521), we get a palindrome (4396886934).

The spelling of 1253533413 in words is "one billion, two hundred fifty-three million, five hundred thirty-three thousand, four hundred thirteen".