611325564 has 12 divisors (see below), whose sum is σ = 1426426344. Its totient is φ = 203775184.

The previous prime is 611325557. The next prime is 611325571. The reversal of 611325564 is 465523116.

It is an interprime number because it is at equal distance from previous prime (611325557) and next prime (611325571).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25471887 + ... + 25471910.

It is an arithmetic number, because the mean of its divisors is an integer number (118868862).

Almost surely, 2^611325564 is an apocalyptic number.

It is an amenable number.

611325564 is an abundant number, since it is smaller than the sum of its proper divisors (815100780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611325564 is a wasteful number, since it uses less digits than its factorization.

611325564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50943804 (or 50943802 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 611325564 is about 24724.9987664307. The cubic root of 611325564 is about 848.7064819064.

The spelling of 611325564 in words is "six hundred eleven million, three hundred twenty-five thousand, five hundred sixty-four".