611330225 has 48 divisors (see below), whose sum is σ = 908513280. Its totient is φ = 402811200.

The previous prime is 611330221. The next prime is 611330257. The reversal of 611330225 is 522033116.

It is not a de Polignac number, because 611330225 - 2² = 611330221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 611330225.

It is not an unprimeable number, because it can be changed into a prime (611330221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117632 + ... + 122718.

It is an arithmetic number, because the mean of its divisors is an integer number (18927360).

Almost surely, 2^611330225 is an apocalyptic number.

It is an amenable number.

611330225 is a deficient number, since it is larger than the sum of its proper divisors (297183055).

611330225 is a wasteful number, since it uses less digits than its factorization.

611330225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150 (or 5145 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 611330225 is about 24725.0930230808. The cubic root of 611330225 is about 848.7086388645.

The spelling of 611330225 in words is "six hundred eleven million, three hundred thirty thousand, two hundred twenty-five".