45278655 has 16 divisors (see below), whose sum is σ = 73125504. Its totient is φ = 23922080.

The previous prime is 45278647. The next prime is 45278659. The reversal of 45278655 is 55687254.

It is not a de Polignac number, because 45278655 - 2³ = 45278647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45278659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12501 + ... + 15710.

It is an arithmetic number, because the mean of its divisors is an integer number (4570344).

Almost surely, 2^45278655 is an apocalyptic number.

45278655 is a deficient number, since it is larger than the sum of its proper divisors (27846849).

45278655 is a wasteful number, since it uses less digits than its factorization.

45278655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28326.

The product of its digits is 336000, while the sum is 42.

The square root of 45278655 is about 6728.9415958232. The cubic root of 45278655 is about 356.4220025062.

The spelling of 45278655 in words is "forty-five million, two hundred seventy-eight thousand, six hundred fifty-five".