252520561111 has 12 divisors (see below), whose sum is σ = 316344439992. Its totient is φ = 199796487408.

The previous prime is 252520561087. The next prime is 252520561129. The reversal of 252520561111 is 111165025252.

It is not a de Polignac number, because 252520561111 - 2¹³ = 252520552919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252520861111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198210165 + ... + 198211438.

It is an arithmetic number, because the mean of its divisors is an integer number (26362036666).

Almost surely, 2^252520561111 is an apocalyptic number.

252520561111 is a deficient number, since it is larger than the sum of its proper divisors (63823878881).

252520561111 is a wasteful number, since it uses less digits than its factorization.

252520561111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396421630 (or 396421623 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 252520561111 its reverse (111165025252), we get a palindrome (363685586363).

The spelling of 252520561111 in words is "two hundred fifty-two billion, five hundred twenty million, five hundred sixty-one thousand, one hundred eleven".