32551415521 has 2 divisors, whose sum is σ = 32551415522. Its totient is φ = 32551415520.

The previous prime is 32551415497. The next prime is 32551415527. The reversal of 32551415521 is 12551415523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20890655296 + 11660760225 = 144536^2 + 107985^2 .

It is a cyclic number.

It is not a de Polignac number, because 32551415521 - 2²³ = 32543026913 is a prime.

It is not a weakly prime, because it can be changed into another prime (32551415527) 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, 16275707760 + 16275707761.

It is an arithmetic number, because the mean of its divisors is an integer number (16275707761).

Almost surely, 2^32551415521 is an apocalyptic number.

It is an amenable number.

32551415521 is a deficient number, since it is larger than the sum of its proper divisors (1).

32551415521 is an equidigital number, since it uses as much as digits as its factorization.

32551415521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30000, while the sum is 34.

The spelling of 32551415521 in words is "thirty-two billion, five hundred fifty-one million, four hundred fifteen thousand, five hundred twenty-one".