1253513603356 has 48 divisors (see below), whose sum is σ = 2522034998784. Its totient is φ = 534005436096.

The previous prime is 1253513603311. The next prime is 1253513603357. The reversal of 1253513603356 is 6533063153521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253513603357) 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, 26342121 + ... + 26389663.

It is an arithmetic number, because the mean of its divisors is an integer number (52542395808).

Almost surely, 2^{1253513603356} is an apocalyptic number.

It is an amenable number.

1253513603356 is an abundant number, since it is smaller than the sum of its proper divisors (1268521395428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253513603356 is a wasteful number, since it uses less digits than its factorization.

1253513603356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53170 (or 53168 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 43.

Adding to 1253513603356 its reverse (6533063153521), we get a palindrome (7786576756877).

The spelling of 1253513603356 in words is "one trillion, two hundred fifty-three billion, five hundred thirteen million, six hundred three thousand, three hundred fifty-six".