611311325 has 12 divisors (see below), whose sum is σ = 763998720. Its totient is φ = 485195760.

The previous prime is 611311321. The next prime is 611311333. The reversal of 611311325 is 523113116.

It is not a de Polignac number, because 611311325 - 2² = 611311321 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 611311325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611311321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93095 + ... + 99444.

It is an arithmetic number, because the mean of its divisors is an integer number (63666560).

Almost surely, 2^611311325 is an apocalyptic number.

It is an amenable number.

611311325 is a deficient number, since it is larger than the sum of its proper divisors (152687395).

611311325 is a wasteful number, since it uses less digits than its factorization.

611311325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192676 (or 192671 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 611311325 is about 24724.7108173180. The cubic root of 611311325 is about 848.6998924959.

The spelling of 611311325 in words is "six hundred eleven million, three hundred eleven thousand, three hundred twenty-five".