252605680 has 20 divisors (see below), whose sum is σ = 587308392. Its totient is φ = 101042240.

The previous prime is 252605663. The next prime is 252605681. The reversal of 252605680 is 86506252.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252605681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578706 + ... + 1578865.

Almost surely, 2^252605680 is an apocalyptic number.

252605680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252605680 is an abundant number, since it is smaller than the sum of its proper divisors (334702712).

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

252605680 is a wasteful number, since it uses less digits than its factorization.

252605680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157584 (or 3157578 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 252605680 is about 15893.5735440460. The cubic root of 252605680 is about 632.1415988873.

The spelling of 252605680 in words is "two hundred fifty-two million, six hundred five thousand, six hundred eighty".