45495221 has 2 divisors, whose sum is σ = 45495222. Its totient is φ = 45495220.

The previous prime is 45495169. The next prime is 45495227. The reversal of 45495221 is 12259454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45495025 + 196 = 6745^2 + 14^2 .

It is a cyclic number.

It is not a de Polignac number, because 45495221 - 2¹⁸ = 45233077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45495227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22747610 + 22747611.

It is an arithmetic number, because the mean of its divisors is an integer number (22747611).

Almost surely, 2^45495221 is an apocalyptic number.

It is an amenable number.

45495221 is a deficient number, since it is larger than the sum of its proper divisors (1).

45495221 is an equidigital number, since it uses as much as digits as its factorization.

45495221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The square root of 45495221 is about 6745.0145292653. The cubic root of 45495221 is about 356.9893496706.

The spelling of 45495221 in words is "forty-five million, four hundred ninety-five thousand, two hundred twenty-one".