252145505044 has 18 divisors (see below), whose sum is σ = 468737623550. Its totient is φ = 118656707712.

The previous prime is 252145504997. The next prime is 252145505119. The reversal of 252145505044 is 440505541252.

It can be written as a sum of positive squares in 3 ways, for example, as 77807523600 + 174337981444 = 278940^2 + 417538^2 .

It is a super-3 number, since 3×252145505044³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252145504994 and 252145505012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109058319 + ... + 109060630.

Almost surely, 2^252145505044 is an apocalyptic number.

It is an amenable number.

252145505044 is a deficient number, since it is larger than the sum of its proper divisors (216592118506).

252145505044 is a wasteful number, since it uses less digits than its factorization.

252145505044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218118987 (or 218118968 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 252145505044 in words is "two hundred fifty-two billion, one hundred forty-five million, five hundred five thousand, forty-four".