2560421610 has 64 divisors (see below), whose sum is σ = 6854544000. Its totient is φ = 680103936.

The previous prime is 2560421597. The next prime is 2560421621. The reversal of 2560421610 is 161240652.

2560421610 is a `hidden beast` number, since 2 + 5 + 6 + 0 + 42 + 1 + 610 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 50941 + ... + 87839.

It is an arithmetic number, because the mean of its divisors is an integer number (107102250).

Almost surely, 2^2560421610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2560421610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3427272000).

2560421610 is an abundant number, since it is smaller than the sum of its proper divisors (4294122390).

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

2560421610 is a wasteful number, since it uses less digits than its factorization.

2560421610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37172 (or 37166 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2560421610 is about 50600.6087908041. The cubic root of 2560421610 is about 1368.0558514439.

The spelling of 2560421610 in words is "two billion, five hundred sixty million, four hundred twenty-one thousand, six hundred ten".