252585038681 has 8 divisors (see below), whose sum is σ = 258510420960. Its totient is φ = 246661988832.

The previous prime is 252585038647. The next prime is 252585038689. The reversal of 252585038681 is 186830585252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252585038681 - 2¹⁴ = 252585022297 is a prime.

It is a super-2 number, since 2×252585038681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252585038689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363020 + ... + 798093.

It is an arithmetic number, because the mean of its divisors is an integer number (32313802620).

Almost surely, 2^252585038681 is an apocalyptic number.

It is an amenable number.

252585038681 is a deficient number, since it is larger than the sum of its proper divisors (5925382279).

252585038681 is a wasteful number, since it uses less digits than its factorization.

252585038681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166215.

The product of its (nonzero) digits is 4608000, while the sum is 53.

The spelling of 252585038681 in words is "two hundred fifty-two billion, five hundred eighty-five million, thirty-eight thousand, six hundred eighty-one".