32512261261 has 2 divisors, whose sum is σ = 32512261262. Its totient is φ = 32512261260.

The previous prime is 32512261259. The next prime is 32512261279. The reversal of 32512261261 is 16216221523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24490372036 + 8021889225 = 156494^2 + 89565^2 .

It is an emirp because it is prime and its reverse (16216221523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32512261261 - 2¹ = 32512261259 is a prime.

Together with 32512261259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32512261211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16256130630 + 16256130631.

It is an arithmetic number, because the mean of its divisors is an integer number (16256130631).

Almost surely, 2^32512261261 is an apocalyptic number.

It is an amenable number.

32512261261 is a deficient number, since it is larger than the sum of its proper divisors (1).

32512261261 is an equidigital number, since it uses as much as digits as its factorization.

32512261261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

Adding to 32512261261 its reverse (16216221523), we get a palindrome (48728482784).

The spelling of 32512261261 in words is "thirty-two billion, five hundred twelve million, two hundred sixty-one thousand, two hundred sixty-one".