53325644 has 6 divisors (see below), whose sum is σ = 93319884. Its totient is φ = 26662820.

The previous prime is 53325641. The next prime is 53325659. The reversal of 53325644 is 44652335.

It is a self number, because there is not a number n which added to its sum of digits gives 53325644.

It is not an unprimeable number, because it can be changed into a prime (53325641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665702 + ... + 6665709.

It is an arithmetic number, because the mean of its divisors is an integer number (15553314).

Almost surely, 2^53325644 is an apocalyptic number.

It is an amenable number.

53325644 is a deficient number, since it is larger than the sum of its proper divisors (39994240).

53325644 is a wasteful number, since it uses less digits than its factorization.

53325644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331415 (or 13331413 counting only the distinct ones).

The product of its digits is 43200, while the sum is 32.

The square root of 53325644 is about 7302.4409617607. The cubic root of 53325644 is about 376.3963208337.

Adding to 53325644 its reverse (44652335), we get a palindrome (97977979).

The spelling of 53325644 in words is "fifty-three million, three hundred twenty-five thousand, six hundred forty-four".