45990555 has 16 divisors (see below), whose sum is σ = 79245600. Its totient is φ = 22641408.

The previous prime is 45990551. The next prime is 45990599. The reversal of 45990555 is 55509954.

It is not a de Polignac number, because 45990555 - 2² = 45990551 is a prime.

It is a super-2 number, since 2×45990555² = 4230262298416050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45990551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117730 + ... + 118119.

It is an arithmetic number, because the mean of its divisors is an integer number (4952850).

Almost surely, 2^45990555 is an apocalyptic number.

45990555 is a deficient number, since it is larger than the sum of its proper divisors (33255045).

45990555 is a wasteful number, since it uses less digits than its factorization.

45990555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235870.

The product of its (nonzero) digits is 202500, while the sum is 42.

The square root of 45990555 is about 6781.6336527418. The cubic root of 45990555 is about 358.2802623164.

The spelling of 45990555 in words is "forty-five million, nine hundred ninety thousand, five hundred fifty-five".