52072445 has 24 divisors (see below), whose sum is σ = 69869304. Its totient is φ = 37122048.

The previous prime is 52072439. The next prime is 52072451. The reversal of 52072445 is 54427025.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52072439) and next prime (52072451).

It can be written as a sum of positive squares in 4 ways, for example, as 24970009 + 27102436 = 4997^2 + 5206^2 .

It is not a de Polignac number, because 52072445 - 2¹⁰ = 52071421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 29837 + ... + 31533.

It is an arithmetic number, because the mean of its divisors is an integer number (2911221).

Almost surely, 2^52072445 is an apocalyptic number.

It is an amenable number.

52072445 is a deficient number, since it is larger than the sum of its proper divisors (17796859).

52072445 is a wasteful number, since it uses less digits than its factorization.

52072445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 52072445 is about 7216.1239595783. The cubic root of 52072445 is about 373.4243697174.

The spelling of 52072445 in words is "fifty-two million, seventy-two thousand, four hundred forty-five".