113553225 has 24 divisors (see below), whose sum is σ = 208602720. Its totient is φ = 60561360.

The previous prime is 113553173. The next prime is 113553227. The reversal of 113553225 is 522355311.

It is a happy number.

It is not a de Polignac number, because 113553225 - 2¹² = 113549129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (113553227) 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, 83439 + ... + 84788.

It is an arithmetic number, because the mean of its divisors is an integer number (8691780).

Almost surely, 2^113553225 is an apocalyptic number.

113553225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113553225 is a deficient number, since it is larger than the sum of its proper divisors (95049495).

113553225 is a wasteful number, since it uses less digits than its factorization.

113553225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168246 (or 168235 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 113553225 is about 10656.1355565702. The cubic root of 113553225 is about 484.2465006343.

The spelling of 113553225 in words is "one hundred thirteen million, five hundred fifty-three thousand, two hundred twenty-five".