45206505 has 48 divisors (see below), whose sum is σ = 84127680. Its totient is φ = 23260608.

The previous prime is 45206503. The next prime is 45206521. The reversal of 45206505 is 50560254.

45206505 is a `hidden beast` number, since 4 + 5 + 2 + 0 + 650 + 5 = 666.

It is not a de Polignac number, because 45206505 - 2¹ = 45206503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45206503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34594 + ... + 35876.

It is an arithmetic number, because the mean of its divisors is an integer number (1752660).

Almost surely, 2^45206505 is an apocalyptic number.

45206505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45206505 is a deficient number, since it is larger than the sum of its proper divisors (38921175).

45206505 is a wasteful number, since it uses less digits than its factorization.

45206505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1320 counting only the distinct ones).

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

The square root of 45206505 is about 6723.5782883819. The cubic root of 45206505 is about 356.2325864065.

Adding to 45206505 its reverse (50560254), we get a palindrome (95766759).

It can be divided in two parts, 4520 and 6505, that added together give a square (11025 = 105²).

The spelling of 45206505 in words is "forty-five million, two hundred six thousand, five hundred five".