45555590 has 8 divisors (see below), whose sum is σ = 82000080. Its totient is φ = 18222232.

The previous prime is 45555589. The next prime is 45555613. The reversal of 45555590 is 9555554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2277770 + ... + 2277789.

It is an arithmetic number, because the mean of its divisors is an integer number (10250010).

Almost surely, 2^45555590 is an apocalyptic number.

45555590 is a deficient number, since it is larger than the sum of its proper divisors (36444490).

45555590 is a wasteful number, since it uses less digits than its factorization.

45555590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555566.

The product of its (nonzero) digits is 112500, while the sum is 38.

The square root of 45555590 is about 6749.4881287398. The cubic root of 45555590 is about 357.1471799096.

The spelling of 45555590 in words is "forty-five million, five hundred fifty-five thousand, five hundred ninety".