52428644 has 6 divisors (see below), whose sum is σ = 91750134. Its totient is φ = 26214320.

The previous prime is 52428637. The next prime is 52428659. The reversal of 52428644 is 44682425.

It can be written as a sum of positive squares in only one way, i.e., 52388644 + 40000 = 7238^2 + 200^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6553577 + ... + 6553584.

It is an arithmetic number, because the mean of its divisors is an integer number (15291689).

Almost surely, 2^52428644 is an apocalyptic number.

It is an amenable number.

52428644 is a deficient number, since it is larger than the sum of its proper divisors (39321490).

52428644 is a wasteful number, since it uses less digits than its factorization.

52428644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13107165 (or 13107163 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

The square root of 52428644 is about 7240.7626670124. The cubic root of 52428644 is about 374.2738992777.

The spelling of 52428644 in words is "fifty-two million, four hundred twenty-eight thousand, six hundred forty-four".