45055784 has 8 divisors (see below), whose sum is σ = 84479610. Its totient is φ = 22527888.

The previous prime is 45055771. The next prime is 45055793. The reversal of 45055784 is 48755054.

It can be written as a sum of positive squares in only one way, i.e., 45024100 + 31684 = 6710^2 + 178^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815979 + ... + 2815994.

Almost surely, 2^45055784 is an apocalyptic number.

It is an amenable number.

45055784 is a deficient number, since it is larger than the sum of its proper divisors (39423826).

45055784 is a wasteful number, since it uses less digits than its factorization.

45055784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631979 (or 5631975 counting only the distinct ones).

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

The square root of 45055784 is about 6712.3605385885. The cubic root of 45055784 is about 355.8362458589.

The spelling of 45055784 in words is "forty-five million, fifty-five thousand, seven hundred eighty-four".