45252505 has 4 divisors (see below), whose sum is σ = 54303012. Its totient is φ = 36202000.

The previous prime is 45252463. The next prime is 45252511. The reversal of 45252505 is 50525254.

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 6911641 + 38340864 = 2629^2 + 6192^2 .

It is not a de Polignac number, because 45252505 - 2⁹ = 45251993 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4525246 + ... + 4525255.

It is an arithmetic number, because the mean of its divisors is an integer number (13575753).

Almost surely, 2^45252505 is an apocalyptic number.

It is an amenable number.

45252505 is a deficient number, since it is larger than the sum of its proper divisors (9050507).

45252505 is an equidigital number, since it uses as much as digits as its factorization.

45252505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9050506.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 45252505 is about 6726.9982161437. The cubic root of 45252505 is about 356.3533739200.

Adding to 45252505 its reverse (50525254), we get a palindrome (95777759).

The spelling of 45252505 in words is "forty-five million, two hundred fifty-two thousand, five hundred five".