45500521222421 has 2 divisors, whose sum is σ = 45500521222422. Its totient is φ = 45500521222420.

The previous prime is 45500521222357. The next prime is 45500521222493. The reversal of 45500521222421 is 12422212500554.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44643591475396 + 856929747025 = 6681586^2 + 925705^2 .

It is a cyclic number.

It is not a de Polignac number, because 45500521222421 - 2⁶ = 45500521222357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45500521224421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22750260611210 + 22750260611211.

It is an arithmetic number, because the mean of its divisors is an integer number (22750260611211).

Almost surely, 2^{45500521222421} is an apocalyptic number.

It is an amenable number.

45500521222421 is a deficient number, since it is larger than the sum of its proper divisors (1).

45500521222421 is an equidigital number, since it uses as much as digits as its factorization.

45500521222421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 45500521222421 its reverse (12422212500554), we get a palindrome (57922733722975).

The spelling of 45500521222421 in words is "forty-five trillion, five hundred billion, five hundred twenty-one million, two hundred twenty-two thousand, four hundred twenty-one".