45532215 has 12 divisors (see below), whose sum is σ = 78922584. Its totient is φ = 24283824.

The previous prime is 45532199. The next prime is 45532219. The reversal of 45532215 is 51223554.

It is a happy number.

It is not a de Polignac number, because 45532215 - 2⁴ = 45532199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45532219) 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, 505869 + ... + 505958.

It is an arithmetic number, because the mean of its divisors is an integer number (6576882).

Almost surely, 2^45532215 is an apocalyptic number.

45532215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45532215 is a deficient number, since it is larger than the sum of its proper divisors (33390369).

45532215 is a wasteful number, since it uses less digits than its factorization.

45532215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011838 (or 1011835 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 45532215 is about 6747.7562937617. The cubic root of 45532215 is about 357.0860842709.

Adding to 45532215 its reverse (51223554), we get a palindrome (96755769).

The spelling of 45532215 in words is "forty-five million, five hundred thirty-two thousand, two hundred fifteen".