45415523 has 4 divisors (see below), whose sum is σ = 45429648. Its totient is φ = 45401400.

The previous prime is 45415507. The next prime is 45415553. The reversal of 45415523 is 32551454.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45415523 - 2⁴ = 45415507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45415553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365 + ... + 9537.

It is an arithmetic number, because the mean of its divisors is an integer number (11357412).

Almost surely, 2^45415523 is an apocalyptic number.

45415523 is a deficient number, since it is larger than the sum of its proper divisors (14125).

45415523 is an equidigital number, since it uses as much as digits as its factorization.

45415523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14124.

The product of its digits is 12000, while the sum is 29.

The square root of 45415523 is about 6739.1040205653. The cubic root of 45415523 is about 356.7807712286.

Adding to 45415523 its reverse (32551454), we get a palindrome (77966977).

The spelling of 45415523 in words is "forty-five million, four hundred fifteen thousand, five hundred twenty-three".