45544545 has 16 divisors (see below), whose sum is σ = 80968320. Its totient is φ = 24290352.

The previous prime is 45544517. The next prime is 45544553. The reversal of 45544545 is 54544554.

It is not a de Polignac number, because 45544545 - 2²⁵ = 11990113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168549 + ... + 168818.

It is an arithmetic number, because the mean of its divisors is an integer number (5060520).

Almost surely, 2^45544545 is an apocalyptic number.

45544545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45544545 is a deficient number, since it is larger than the sum of its proper divisors (35423775).

45544545 is a wasteful number, since it uses less digits than its factorization.

45544545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337381 (or 337375 counting only the distinct ones).

The product of its digits is 160000, while the sum is 36.

The square root of 45544545 is about 6748.6698689445. The cubic root of 45544545 is about 357.1183140087.

Subtracting 45544545 from its reverse (54544554), we obtain a palindrome (9000009).

The spelling of 45544545 in words is "forty-five million, five hundred forty-four thousand, five hundred forty-five".