52628445 has 12 divisors (see below), whose sum is σ = 91222716. Its totient is φ = 28068480.

The previous prime is 52628437. The next prime is 52628453. The reversal of 52628445 is 54482625.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52628437) and next prime (52628453).

It can be written as a sum of positive squares in 2 ways, for example, as 28451556 + 24176889 = 5334^2 + 4917^2 .

It is not a de Polignac number, because 52628445 - 2³ = 52628437 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584716 + ... + 584805.

It is an arithmetic number, because the mean of its divisors is an integer number (7601893).

Almost surely, 2^52628445 is an apocalyptic number.

It is an amenable number.

52628445 is a deficient number, since it is larger than the sum of its proper divisors (38594271).

52628445 is a wasteful number, since it uses less digits than its factorization.

52628445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169532 (or 1169529 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 52628445 is about 7254.5465054681. The cubic root of 52628445 is about 374.7487383512.

The spelling of 52628445 in words is "fifty-two million, six hundred twenty-eight thousand, four hundred forty-five".