252085580251 has 4 divisors (see below), whose sum is σ = 252086835400. Its totient is φ = 252084325104.

The previous prime is 252085580239. The next prime is 252085580273. The reversal of 252085580251 is 152085580252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252085580251 - 2²³ = 252077191643 is a prime.

It is a super-2 number, since 2×252085580251² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252085580198 and 252085580207.

It is not an unprimeable number, because it can be changed into a prime (252085580221) 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, 250986 + ... + 753103.

It is an arithmetic number, because the mean of its divisors is an integer number (63021708850).

Almost surely, 2^252085580251 is an apocalyptic number.

252085580251 is a deficient number, since it is larger than the sum of its proper divisors (1255149).

252085580251 is a wasteful number, since it uses less digits than its factorization.

252085580251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255148.

The product of its (nonzero) digits is 320000, while the sum is 43.

Subtracting from 252085580251 its reverse (152085580252), we obtain a palindrome (99999999999).

The spelling of 252085580251 in words is "two hundred fifty-two billion, eighty-five million, five hundred eighty thousand, two hundred fifty-one".