111552444553 has 24 divisors (see below), whose sum is σ = 123720143904. Its totient is φ = 99749707200.

The previous prime is 111552444547. The next prime is 111552444559. The reversal of 111552444553 is 355444255111.

It is an interprime number because it is at equal distance from previous prime (111552444547) and next prime (111552444559).

It is not a de Polignac number, because 111552444553 - 2¹³ = 111552436361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111552444559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46266918 + ... + 46269328.

It is an arithmetic number, because the mean of its divisors is an integer number (5155005996).

Almost surely, 2^111552444553 is an apocalyptic number.

It is an amenable number.

111552444553 is a deficient number, since it is larger than the sum of its proper divisors (12167699351).

111552444553 is an equidigital number, since it uses as much as digits as its factorization.

111552444553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493 (or 3426 counting only the distinct ones).

The product of its digits is 240000, while the sum is 40.

Adding to 111552444553 its reverse (355444255111), we get a palindrome (466996699664).

The spelling of 111552444553 in words is "one hundred eleven billion, five hundred fifty-two million, four hundred forty-four thousand, five hundred fifty-three".