52561445 has 4 divisors (see below), whose sum is σ = 63073740. Its totient is φ = 42049152.

The previous prime is 52561441. The next prime is 52561451. The reversal of 52561445 is 54416525.

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 20367169 + 32194276 = 4513^2 + 5674^2 .

It is a cyclic number.

It is not a de Polignac number, because 52561445 - 2² = 52561441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52561441) 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, 5256140 + ... + 5256149.

It is an arithmetic number, because the mean of its divisors is an integer number (15768435).

Almost surely, 2^52561445 is an apocalyptic number.

It is an amenable number.

52561445 is a deficient number, since it is larger than the sum of its proper divisors (10512295).

52561445 is a wasteful number, since it uses less digits than its factorization.

52561445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10512294.

The product of its digits is 24000, while the sum is 32.

The square root of 52561445 is about 7249.9272410142. The cubic root of 52561445 is about 374.5896429679.

The spelling of 52561445 in words is "fifty-two million, five hundred sixty-one thousand, four hundred forty-five".