2577320220 has 48 divisors (see below), whose sum is σ = 7273340928. Its totient is φ = 681871680.

The previous prime is 2577320201. The next prime is 2577320231. The reversal of 2577320220 is 220237752.

2577320220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161496 + ... + 176735.

It is an arithmetic number, because the mean of its divisors is an integer number (151527936).

Almost surely, 2^2577320220 is an apocalyptic number.

2577320220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2577320220 is an abundant number, since it is smaller than the sum of its proper divisors (4696020708).

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

2577320220 is a wasteful number, since it uses less digits than its factorization.

2577320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338370 (or 338368 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 2577320220 is about 50767.3144848139. The cubic root of 2577320220 is about 1371.0589464883.

Adding to 2577320220 its reverse (220237752), we get a palindrome (2797557972).

The spelling of 2577320220 in words is "two billion, five hundred seventy-seven million, three hundred twenty thousand, two hundred twenty".