45078455 has 4 divisors (see below), whose sum is σ = 54094152. Its totient is φ = 36062760.

The previous prime is 45078443. The next prime is 45078457. The reversal of 45078455 is 55487054.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 45078455 - 2⁸ = 45078199 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 (45078457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4507841 + ... + 4507850.

It is an arithmetic number, because the mean of its divisors is an integer number (13523538).

Almost surely, 2^45078455 is an apocalyptic number.

45078455 is a deficient number, since it is larger than the sum of its proper divisors (9015697).

45078455 is an equidigital number, since it uses as much as digits as its factorization.

45078455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9015696.

The product of its (nonzero) digits is 112000, while the sum is 38.

The square root of 45078455 is about 6714.0490763771. The cubic root of 45078455 is about 355.8959186328.

The spelling of 45078455 in words is "forty-five million, seventy-eight thousand, four hundred fifty-five".