45551658 has 16 divisors (see below), whose sum is σ = 92648160. Its totient is φ = 14926416.

The previous prime is 45551629. The next prime is 45551669. The reversal of 45551658 is 85615554.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63985 + ... + 64692.

It is an arithmetic number, because the mean of its divisors is an integer number (5790510).

Almost surely, 2^45551658 is an apocalyptic number.

45551658 is an abundant number, since it is smaller than the sum of its proper divisors (47096502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45551658 is a wasteful number, since it uses less digits than its factorization.

45551658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128741.

The product of its digits is 120000, while the sum is 39.

The square root of 45551658 is about 6749.1968411064. The cubic root of 45551658 is about 357.1369042360.

The spelling of 45551658 in words is "forty-five million, five hundred fifty-one thousand, six hundred fifty-eight".