113305553 has 4 divisors (see below), whose sum is σ = 113378100. Its totient is φ = 113233008.

The previous prime is 113305529. The next prime is 113305583. The reversal of 113305553 is 355503311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52823824 + 60481729 = 7268^2 + 7777^2 .

It is a cyclic number.

It is not a de Polignac number, because 113305553 - 2¹² = 113301457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113305583) 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, 33878 + ... + 37071.

It is an arithmetic number, because the mean of its divisors is an integer number (28344525).

Almost surely, 2^113305553 is an apocalyptic number.

It is an amenable number.

113305553 is a deficient number, since it is larger than the sum of its proper divisors (72547).

113305553 is an equidigital number, since it uses as much as digits as its factorization.

113305553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72546.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 113305553 is about 10644.5081145161. The cubic root of 113305553 is about 483.8941795041.

Adding to 113305553 its reverse (355503311), we get a palindrome (468808864).

The spelling of 113305553 in words is "one hundred thirteen million, three hundred five thousand, five hundred fifty-three".