45055331 has 4 divisors (see below), whose sum is σ = 45122952. Its totient is φ = 44987712.

The previous prime is 45055313. The next prime is 45055337. The reversal of 45055331 is 13355054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13355054 = 2 ⋅6677527.

It is a cyclic number.

It is not a de Polignac number, because 45055331 - 2⁶ = 45055267 is a prime.

It is a super-2 number, since 2×45055331² = 4059965703039122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45055331.

It is not an unprimeable number, because it can be changed into a prime (45055337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32801 + ... + 34146.

It is an arithmetic number, because the mean of its divisors is an integer number (11280738).

Almost surely, 2^45055331 is an apocalyptic number.

45055331 is a deficient number, since it is larger than the sum of its proper divisors (67621).

45055331 is an equidigital number, since it uses as much as digits as its factorization.

45055331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67620.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 45055331 is about 6712.3267947858. The cubic root of 45055331 is about 355.8350533050.

The spelling of 45055331 in words is "forty-five million, fifty-five thousand, three hundred thirty-one".