32251332397 has 2 divisors, whose sum is σ = 32251332398. Its totient is φ = 32251332396.

The previous prime is 32251332341. The next prime is 32251332409. The reversal of 32251332397 is 79323315223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26913714916 + 5337617481 = 164054^2 + 73059^2 .

It is a cyclic number.

It is not a de Polignac number, because 32251332397 - 2²⁷ = 32117114669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32251335397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16125666198 + 16125666199.

It is an arithmetic number, because the mean of its divisors is an integer number (16125666199).

Almost surely, 2^32251332397 is an apocalyptic number.

It is an amenable number.

32251332397 is a deficient number, since it is larger than the sum of its proper divisors (1).

32251332397 is an equidigital number, since it uses as much as digits as its factorization.

32251332397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 40.

The spelling of 32251332397 in words is "thirty-two billion, two hundred fifty-one million, three hundred thirty-two thousand, three hundred ninety-seven".