11452213555 has 4 divisors (see below), whose sum is σ = 13742656272. Its totient is φ = 9161770840.

The previous prime is 11452213547. The next prime is 11452213559. The reversal of 11452213555 is 55531225411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11452213555 - 2³ = 11452213547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11452213555.

It is not an unprimeable number, because it can be changed into a prime (11452213559) 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, 1145221351 + ... + 1145221360.

It is an arithmetic number, because the mean of its divisors is an integer number (3435664068).

Almost surely, 2^11452213555 is an apocalyptic number.

11452213555 is a deficient number, since it is larger than the sum of its proper divisors (2290442717).

11452213555 is an equidigital number, since it uses as much as digits as its factorization.

11452213555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290442716.

The product of its digits is 30000, while the sum is 34.

Adding to 11452213555 its reverse (55531225411), we get a palindrome (66983438966).

The spelling of 11452213555 in words is "eleven billion, four hundred fifty-two million, two hundred thirteen thousand, five hundred fifty-five".