45742505 has 4 divisors (see below), whose sum is σ = 54891012. Its totient is φ = 36594000.

The previous prime is 45742493. The next prime is 45742507. The reversal of 45742505 is 50524754.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9357481 + 36385024 = 3059^2 + 6032^2 .

It is not a de Polignac number, because 45742505 - 2²² = 41548201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45742507) 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, 4574246 + ... + 4574255.

It is an arithmetic number, because the mean of its divisors is an integer number (13722753).

Almost surely, 2^45742505 is an apocalyptic number.

It is an amenable number.

45742505 is a deficient number, since it is larger than the sum of its proper divisors (9148507).

45742505 is an equidigital number, since it uses as much as digits as its factorization.

45742505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9148506.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 45742505 is about 6763.3205601982. The cubic root of 45742505 is about 357.6349727527.

The spelling of 45742505 in words is "forty-five million, seven hundred forty-two thousand, five hundred five".