3055520 has 72 divisors (see below), whose sum is σ = 7885836. Its totient is φ = 1118208.

The previous prime is 3055519. The next prime is 3055567. The reversal of 3055520 is 255503.

3055520 = 184² + 185² + ... + 248².

It can be written as a sum of positive squares in 6 ways, for example, as 16 + 3055504 = 4^2 + 1748^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3055492 and 3055501.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26984 + ... + 27096.

Almost surely, 2^3055520 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 3055520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3942918).

3055520 is an abundant number, since it is smaller than the sum of its proper divisors (4830316).

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

3055520 is a wasteful number, since it uses less digits than its factorization.

3055520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 3055520 is about 1748.0045766530. The cubic root of 3055520 is about 145.1092320006.

The spelling of 3055520 in words is "three million, fifty-five thousand, five hundred twenty".