252116236545 has 16 divisors (see below), whose sum is σ = 403393418880. Its totient is φ = 134459512704.

The previous prime is 252116236531. The next prime is 252116236549. The reversal of 252116236545 is 545632611252.

It is not a de Polignac number, because 252116236545 - 2⁴ = 252116236529 is a prime.

It is a super-2 number, since 2×252116236545² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252116236497 and 252116236506.

It is not an unprimeable number, because it can be changed into a prime (252116236549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930597 + ... + 1170573.

It is an arithmetic number, because the mean of its divisors is an integer number (25212088680).

Almost surely, 2^252116236545 is an apocalyptic number.

It is an amenable number.

252116236545 is a deficient number, since it is larger than the sum of its proper divisors (151277182335).

252116236545 is a wasteful number, since it uses less digits than its factorization.

252116236545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310024.

The product of its digits is 432000, while the sum is 42.

Adding to 252116236545 its reverse (545632611252), we get a palindrome (797748847797).

The spelling of 252116236545 in words is "two hundred fifty-two billion, one hundred sixteen million, two hundred thirty-six thousand, five hundred forty-five".