45455549 has 4 divisors (see below), whose sum is σ = 46095840. Its totient is φ = 44815260.

The previous prime is 45455539. The next prime is 45455551. The reversal of 45455549 is 94555454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45455549 - 2²⁴ = 28678333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45455539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320039 + ... + 320180.

It is an arithmetic number, because the mean of its divisors is an integer number (11523960).

Almost surely, 2^45455549 is an apocalyptic number.

It is an amenable number.

45455549 is a deficient number, since it is larger than the sum of its proper divisors (640291).

45455549 is an equidigital number, since it uses as much as digits as its factorization.

45455549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640290.

The product of its digits is 360000, while the sum is 41.

The square root of 45455549 is about 6742.0730491445. The cubic root of 45455549 is about 356.8855541529.

The spelling of 45455549 in words is "forty-five million, four hundred fifty-five thousand, five hundred forty-nine".