45205547 has 2 divisors, whose sum is σ = 45205548. Its totient is φ = 45205546.

The previous prime is 45205483. The next prime is 45205549. The reversal of 45205547 is 74550254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45205547 - 2⁶ = 45205483 is a prime.

Together with 45205549, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45205549) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22602773 + 22602774.

It is an arithmetic number, because the mean of its divisors is an integer number (22602774).

Almost surely, 2^45205547 is an apocalyptic number.

45205547 is a deficient number, since it is larger than the sum of its proper divisors (1).

45205547 is an equidigital number, since it uses as much as digits as its factorization.

45205547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 45205547 is about 6723.5070461776. The cubic root of 45205547 is about 356.2300700044.

The spelling of 45205547 in words is "forty-five million, two hundred five thousand, five hundred forty-seven".