1553132262553 has 4 divisors (see below), whose sum is σ = 1553206133248. Its totient is φ = 1553058391860.

The previous prime is 1553132262499. The next prime is 1553132262581. The reversal of 1553132262553 is 3552622313551.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1553132262553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553132262853) 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, 36903801 + ... + 36945862.

It is an arithmetic number, because the mean of its divisors is an integer number (388301533312).

Almost surely, 2^{1553132262553} is an apocalyptic number.

It is an amenable number.

1553132262553 is a deficient number, since it is larger than the sum of its proper divisors (73870695).

1553132262553 is an equidigital number, since it uses as much as digits as its factorization.

1553132262553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73870694.

The product of its digits is 810000, while the sum is 43.

The spelling of 1553132262553 in words is "one trillion, five hundred fifty-three billion, one hundred thirty-two million, two hundred sixty-two thousand, five hundred fifty-three".