45545331 has 12 divisors (see below), whose sum is σ = 65758488. Its totient is φ = 28027584.

The previous prime is 45545321. The next prime is 45545351. The reversal of 45545331 is 13354554.

It is not a de Polignac number, because 45545331 - 2¹⁰ = 45544307 is a prime.

It is a super-2 number, since 2×45545331² = 4148754351799122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45545321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44410 + ... + 45423.

It is an arithmetic number, because the mean of its divisors is an integer number (5479874).

Almost surely, 2^45545331 is an apocalyptic number.

45545331 is a deficient number, since it is larger than the sum of its proper divisors (20213157).

45545331 is a wasteful number, since it uses less digits than its factorization.

45545331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89862 (or 89849 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 45545331 is about 6748.7281023908. The cubic root of 45545331 is about 357.1203683592.

Adding to 45545331 its reverse (13354554), we get a palindrome (58899885).

The spelling of 45545331 in words is "forty-five million, five hundred forty-five thousand, three hundred thirty-one".