45132550321 has 2 divisors, whose sum is σ = 45132550322. Its totient is φ = 45132550320.

The previous prime is 45132550319. The next prime is 45132550339. The reversal of 45132550321 is 12305523154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32964033600 + 12168516721 = 181560^2 + 110311^2 .

It is a cyclic number.

It is not a de Polignac number, because 45132550321 - 2¹ = 45132550319 is a prime.

Together with 45132550319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45132556321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22566275160 + 22566275161.

It is an arithmetic number, because the mean of its divisors is an integer number (22566275161).

Almost surely, 2^45132550321 is an apocalyptic number.

It is an amenable number.

45132550321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45132550321 is an equidigital number, since it uses as much as digits as its factorization.

45132550321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 45132550321 in words is "forty-five billion, one hundred thirty-two million, five hundred fifty thousand, three hundred twenty-one".