45211545 has 24 divisors (see below), whose sum is σ = 82492800. Its totient is φ = 22843296.

The previous prime is 45211519. The next prime is 45211549. The reversal of 45211545 is 54511254.

It is not a de Polignac number, because 45211545 - 2⁵ = 45211513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45211549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25585 + ... + 27294.

It is an arithmetic number, because the mean of its divisors is an integer number (3437200).

Almost surely, 2^45211545 is an apocalyptic number.

45211545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45211545 is a deficient number, since it is larger than the sum of its proper divisors (37281255).

45211545 is a wasteful number, since it uses less digits than its factorization.

45211545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52909 (or 52906 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 45211545 is about 6723.9530783610. The cubic root of 45211545 is about 356.2458245125.

Adding to 45211545 its reverse (54511254), we get a palindrome (99722799).

The spelling of 45211545 in words is "forty-five million, two hundred eleven thousand, five hundred forty-five".