611079520 has 96 divisors (see below), whose sum is σ = 1545868800. Its totient is φ = 227575296.

The previous prime is 611079431. The next prime is 611079523. The reversal of 611079520 is 25970116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611079523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177657 + ... + 181063.

It is an arithmetic number, because the mean of its divisors is an integer number (16102800).

Almost surely, 2^611079520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611079520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772934400).

611079520 is an abundant number, since it is smaller than the sum of its proper divisors (934789280).

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

611079520 is a wasteful number, since it uses less digits than its factorization.

611079520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500 (or 3492 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 611079520 is about 24720.0226537113. The cubic root of 611079520 is about 848.5926052363.

The spelling of 611079520 in words is "six hundred eleven million, seventy-nine thousand, five hundred twenty".