2561028060 has 24 divisors (see below), whose sum is σ = 7170878736. Its totient is φ = 682940800.

The previous prime is 2561028037. The next prime is 2561028091. The reversal of 2561028060 is 608201652.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21341841 + ... + 21341960.

It is an arithmetic number, because the mean of its divisors is an integer number (298786614).

Almost surely, 2^2561028060 is an apocalyptic number.

2561028060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2561028060 is an abundant number, since it is smaller than the sum of its proper divisors (4609850676).

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

2561028060 is a wasteful number, since it uses less digits than its factorization.

2561028060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42683813 (or 42683811 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2561028060 is about 50606.6009528401. The cubic root of 2561028060 is about 1368.1638534456.

The spelling of 2561028060 in words is "two billion, five hundred sixty-one million, twenty-eight thousand, sixty".