252011232330545 has 16 divisors (see below), whose sum is σ = 304086174646800. Its totient is φ = 200493869241600.

The previous prime is 252011232330523. The next prime is 252011232330587. The reversal of 252011232330545 is 545033232110252.

It can be written as a sum of positive squares in 8 ways, for example, as 100585975913536 + 151425256417009 = 10029256^2 + 12305497^2 .

It is a de Polignac number, because none of the positive numbers 2^k-252011232330545 is a prime.

It is a super-2 number, since 2×252011232330545² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252011232330499 and 252011232330508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160261415 + ... + 161826275.

It is an arithmetic number, because the mean of its divisors is an integer number (19005385915425).

Almost surely, 2^{252011232330545} is an apocalyptic number.

It is an amenable number.

252011232330545 is a deficient number, since it is larger than the sum of its proper divisors (52074942316255).

252011232330545 is a wasteful number, since it uses less digits than its factorization.

252011232330545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742996.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 252011232330545 its reverse (545033232110252), we get a palindrome (797044464440797).

The spelling of 252011232330545 in words is "two hundred fifty-two trillion, eleven billion, two hundred thirty-two million, three hundred thirty thousand, five hundred forty-five".