45551447 has 2 divisors, whose sum is σ = 45551448. Its totient is φ = 45551446.

The previous prime is 45551423. The next prime is 45551453. The reversal of 45551447 is 74415554.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45551447 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 (45551497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22775723 + 22775724.

It is an arithmetic number, because the mean of its divisors is an integer number (22775724).

Almost surely, 2^45551447 is an apocalyptic number.

45551447 is a deficient number, since it is larger than the sum of its proper divisors (1).

45551447 is an equidigital number, since it uses as much as digits as its factorization.

45551447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56000, while the sum is 35.

The square root of 45551447 is about 6749.1812095987. The cubic root of 45551447 is about 357.1363528034.

The spelling of 45551447 in words is "forty-five million, five hundred fifty-one thousand, four hundred forty-seven".