2546565280 has 144 divisors (see below), whose sum is σ = 7148445696. Its totient is φ = 854407680.

The previous prime is 2546565251. The next prime is 2546565319. The reversal of 2546565280 is 825656452.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365025 + ... + 371935.

It is an arithmetic number, because the mean of its divisors is an integer number (49641984).

Almost surely, 2^2546565280 is an apocalyptic number.

2546565280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2546565280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3574222848).

2546565280 is an abundant number, since it is smaller than the sum of its proper divisors (4601880416).

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

2546565280 is a wasteful number, since it uses less digits than its factorization.

2546565280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987 (or 6972 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 43.

The square root of 2546565280 is about 50463.5044363746. The cubic root of 2546565280 is about 1365.5835331051.

The spelling of 2546565280 in words is "two billion, five hundred forty-six million, five hundred sixty-five thousand, two hundred eighty".