32551223461 has 2 divisors, whose sum is σ = 32551223462. Its totient is φ = 32551223460.

The previous prime is 32551223401. The next prime is 32551223513. The reversal of 32551223461 is 16432215523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22545022500 + 10006200961 = 150150^2 + 100031^2 .

It is a cyclic number.

It is not a de Polignac number, because 32551223461 - 2²⁵ = 32517669029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32551223401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16275611730 + 16275611731.

It is an arithmetic number, because the mean of its divisors is an integer number (16275611731).

Almost surely, 2^32551223461 is an apocalyptic number.

It is an amenable number.

32551223461 is a deficient number, since it is larger than the sum of its proper divisors (1).

32551223461 is an equidigital number, since it uses as much as digits as its factorization.

32551223461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

Adding to 32551223461 its reverse (16432215523), we get a palindrome (48983438984).

The spelling of 32551223461 in words is "thirty-two billion, five hundred fifty-one million, two hundred twenty-three thousand, four hundred sixty-one".