611325720 has 48 divisors (see below), whose sum is σ = 1986809760. Its totient is φ = 163020096.

The previous prime is 611325707. The next prime is 611325721. The reversal of 611325720 is 27523116.

It is a happy number.

611325720 is a `hidden beast` number, since 61 + 1 + 32 + 572 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611325721) 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 11 ways as a sum of consecutive naturals, for example, 848704 + ... + 849423.

It is an arithmetic number, because the mean of its divisors is an integer number (41391870).

Almost surely, 2^611325720 is an apocalyptic number.

611325720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

611325720 is an abundant number, since it is smaller than the sum of its proper divisors (1375484040).

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

611325720 is a wasteful number, since it uses less digits than its factorization.

611325720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698144 (or 1698137 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 611325720 is about 24725.0019211324. The cubic root of 611325720 is about 848.7065540983.

Adding to 611325720 its reverse (27523116), we get a palindrome (638848836).

The spelling of 611325720 in words is "six hundred eleven million, three hundred twenty-five thousand, seven hundred twenty".