45205554 has 8 divisors (see below), whose sum is σ = 90411120. Its totient is φ = 15068516.

The previous prime is 45205553. The next prime is 45205561. The reversal of 45205554 is 45550254.

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

45205554 is an admirable number.

It is a super-2 number, since 2×45205554² = 4087084224893832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45205553) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3767124 + ... + 3767135.

It is an arithmetic number, because the mean of its divisors is an integer number (11301390).

Almost surely, 2^45205554 is an apocalyptic number.

45205554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45205554 is a wasteful number, since it uses less digits than its factorization.

45205554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7534264.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 45205554 is about 6723.5075667393. The cubic root of 45205554 is about 356.2300883916.

The spelling of 45205554 in words is "forty-five million, two hundred five thousand, five hundred fifty-four".