2562575820 has 96 divisors (see below), whose sum is σ = 8556807168. Its totient is φ = 560262912.

The previous prime is 2562575791. The next prime is 2562575839. The reversal of 2562575820 is 285752652.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 122979 + ... + 142298.

It is an arithmetic number, because the mean of its divisors is an integer number (89133408).

Almost surely, 2^2562575820 is an apocalyptic number.

2562575820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2562575820 is an abundant number, since it is smaller than the sum of its proper divisors (5994231348).

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

2562575820 is a wasteful number, since it uses less digits than its factorization.

2562575820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265319 (or 265317 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 2562575820 is about 50621.8907193321. The cubic root of 2562575820 is about 1368.4394150287.

The spelling of 2562575820 in words is "two billion, five hundred sixty-two million, five hundred seventy-five thousand, eight hundred twenty".