2575155660 has 192 divisors, whose sum is σ = 9014906880. Its totient is φ = 533594880.

The previous prime is 2575155641. The next prime is 2575155673. The reversal of 2575155660 is 665515752.

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

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2526631 + ... + 2527649.

It is an arithmetic number, because the mean of its divisors is an integer number (46952640).

Almost surely, 2^2575155660 is an apocalyptic number.

2575155660 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 2575155660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4507453440).

2575155660 is an abundant number, since it is smaller than the sum of its proper divisors (6439751220).

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

2575155660 is a wasteful number, since it uses less digits than its factorization.

2575155660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 42.

The square root of 2575155660 is about 50745.9915658370. The cubic root of 2575155660 is about 1370.6750114569.

It can be divided in two parts, 257515 and 5660, that added together give a triangular number (263175 = T₇₂₅).

The spelling of 2575155660 in words is "two billion, five hundred seventy-five million, one hundred fifty-five thousand, six hundred sixty".