2506220 has 12 divisors (see below), whose sum is σ = 5263104. Its totient is φ = 1002480.

The previous prime is 2506201. The next prime is 2506223. The reversal of 2506220 is 226052.

It is a super-2 number, since 2×2506220² = 12562277376800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2506223) by changing a digit.

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, 62636 + ... + 62675.

It is an arithmetic number, because the mean of its divisors is an integer number (438592).

2^2506220 is an apocalyptic number.

2506220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2506220 is an abundant number, since it is smaller than the sum of its proper divisors (2756884).

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

2506220 is a wasteful number, since it uses less digits than its factorization.

2506220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125320 (or 125318 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2506220 is about 1583.1045448738. The cubic root of 2506220 is about 135.8333454611.

The spelling of 2506220 in words is "two million, five hundred six thousand, two hundred twenty".