53452445 has 4 divisors (see below), whose sum is σ = 64142940. Its totient is φ = 42761952.

The previous prime is 53452439. The next prime is 53452447. The reversal of 53452445 is 54425435.

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 15531481 + 37920964 = 3941^2 + 6158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53452445 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53452447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5345240 + ... + 5345249.

It is an arithmetic number, because the mean of its divisors is an integer number (16035735).

Almost surely, 2^53452445 is an apocalyptic number.

It is an amenable number.

53452445 is a deficient number, since it is larger than the sum of its proper divisors (10690495).

53452445 is a wasteful number, since it uses less digits than its factorization.

53452445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10690494.

The product of its digits is 48000, while the sum is 32.

The square root of 53452445 is about 7311.1179035767. The cubic root of 53452445 is about 376.6944241255.

The spelling of 53452445 in words is "fifty-three million, four hundred fifty-two thousand, four hundred forty-five".