1253550133455 has 16 divisors (see below), whose sum is σ = 2052323940480. Its totient is φ = 653012162208.

The previous prime is 1253550133453. The next prime is 1253550133471. The reversal of 1253550133455 is 5543310553521.

It is not a de Polignac number, because 1253550133455 - 2¹ = 1253550133453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253550133453) 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, 971743645 + ... + 971744934.

It is an arithmetic number, because the mean of its divisors is an integer number (128270246280).

Almost surely, 2^{1253550133455} is an apocalyptic number.

1253550133455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1253550133455 is a deficient number, since it is larger than the sum of its proper divisors (798773807025).

1253550133455 is a wasteful number, since it uses less digits than its factorization.

1253550133455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943488630.

The product of its (nonzero) digits is 675000, while the sum is 42.

Adding to 1253550133455 its reverse (5543310553521), we get a palindrome (6796860686976).

The spelling of 1253550133455 in words is "one trillion, two hundred fifty-three billion, five hundred fifty million, one hundred thirty-three thousand, four hundred fifty-five".