45555558 has 16 divisors (see below), whose sum is σ = 91724400. Its totient is φ = 15082976.

The previous prime is 45555553. The next prime is 45555581. The reversal of 45555558 is 85555554.

It is a happy number.

It is a super-3 number, since 3×45555558³ (a number of 24 digits) contains 333 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45555553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24585 + ... + 26372.

It is an arithmetic number, because the mean of its divisors is an integer number (5732775).

Almost surely, 2^45555558 is an apocalyptic number.

45555558 is an abundant number, since it is smaller than the sum of its proper divisors (46168842).

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

45555558 is a wasteful number, since it uses less digits than its factorization.

45555558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51111.

The product of its digits is 500000, while the sum is 42.

The square root of 45555558 is about 6749.4857581893. The cubic root of 45555558 is about 357.1470962849.

The spelling of 45555558 in words is "forty-five million, five hundred fifty-five thousand, five hundred fifty-eight".