252400225005 has 24 divisors (see below), whose sum is σ = 437952867768. Its totient is φ = 134472178176.

The previous prime is 252400225001. The next prime is 252400225097. The reversal of 252400225005 is 500522004252.

252400225005 is a `hidden beast` number, since 2 + 5 + 2 + 400 + 2 + 250 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 743489289 + 251656735716 = 27267^2 + 501654^2 .

It is not a de Polignac number, because 252400225005 - 2² = 252400225001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252400225005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252400225001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2899872 + ... + 2985641.

It is an arithmetic number, because the mean of its divisors is an integer number (18248036157).

Almost surely, 2^252400225005 is an apocalyptic number.

It is an amenable number.

252400225005 is a deficient number, since it is larger than the sum of its proper divisors (185552642763).

252400225005 is a wasteful number, since it uses less digits than its factorization.

252400225005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5886477 (or 5886474 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

Adding to 252400225005 its reverse (500522004252), we get a palindrome (752922229257).

The spelling of 252400225005 in words is "two hundred fifty-two billion, four hundred million, two hundred twenty-five thousand, five".