11315452553 has 4 divisors (see below), whose sum is σ = 11317377300. Its totient is φ = 11313527808.

The previous prime is 11315452549. The next prime is 11315452571. The reversal of 11315452553 is 35525451311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35525451311 = 7 ⋅5075064473.

It can be written as a sum of positive squares in 2 ways, for example, as 10537433104 + 778019449 = 102652^2 + 27893^2 .

It is a cyclic number.

It is not a de Polignac number, because 11315452553 - 2² = 11315452549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11315452573) 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, 953528 + ... + 965321.

It is an arithmetic number, because the mean of its divisors is an integer number (2829344325).

Almost surely, 2^11315452553 is an apocalyptic number.

It is an amenable number.

11315452553 is a deficient number, since it is larger than the sum of its proper divisors (1924747).

11315452553 is an equidigital number, since it uses as much as digits as its factorization.

11315452553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924746.

The product of its digits is 45000, while the sum is 35.

The spelling of 11315452553 in words is "eleven billion, three hundred fifteen million, four hundred fifty-two thousand, five hundred fifty-three".