250065660 has 192 divisors, whose sum is σ = 804722688. Its totient is φ = 57547776.

The previous prime is 250065653. The next prime is 250065671. The reversal of 250065660 is 66560052.

It is a super-2 number, since 2×250065660² = 125065668622471200, which contains 22 as substring.

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 (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 950689 + ... + 950951.

It is an arithmetic number, because the mean of its divisors is an integer number (4191264).

Almost surely, 2^250065660 is an apocalyptic number.

250065660 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 250065660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402361344).

250065660 is an abundant number, since it is smaller than the sum of its proper divisors (554657028).

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

250065660 is a wasteful number, since it uses less digits than its factorization.

250065660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 250065660 is about 15813.4645160382. The cubic root of 250065660 is about 630.0156710640.

The spelling of 250065660 in words is "two hundred fifty million, sixty-five thousand, six hundred sixty".