2475581820 has 96 divisors (see below), whose sum is σ = 7725715200. Its totient is φ = 588616704.

The previous prime is 2475581819. The next prime is 2475581831. The reversal of 2475581820 is 281855742.

2475581820 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2475581820² = 12257010695029024800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44490 + ... + 83249.

It is an arithmetic number, because the mean of its divisors is an integer number (80476200).

Almost surely, 2^2475581820 is an apocalyptic number.

2475581820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2475581820 is an abundant number, since it is smaller than the sum of its proper divisors (5250133380).

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

2475581820 is a wasteful number, since it uses less digits than its factorization.

2475581820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127787 (or 127785 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 2475581820 is about 49755.2190227317. The cubic root of 2475581820 is about 1352.7756008375.

The spelling of 2475581820 in words is "two billion, four hundred seventy-five million, five hundred eighty-one thousand, eight hundred twenty".