53645344 has 12 divisors (see below), whose sum is σ = 105614334. Its totient is φ = 26822656.

The previous prime is 53645329. The next prime is 53645357. The reversal of 53645344 is 44354635.

It can be written as a sum of positive squares in only one way, i.e., 41113744 + 12531600 = 6412^2 + 3540^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838177 + ... + 838240.

Almost surely, 2^53645344 is an apocalyptic number.

It is an amenable number.

53645344 is a deficient number, since it is larger than the sum of its proper divisors (51968990).

53645344 is a wasteful number, since it uses less digits than its factorization.

53645344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676427 (or 1676419 counting only the distinct ones).

The product of its digits is 86400, while the sum is 34.

The square root of 53645344 is about 7324.2981916358. The cubic root of 53645344 is about 377.1470179697.

Adding to 53645344 its reverse (44354635), we get a palindrome (97999979).

The spelling of 53645344 in words is "fifty-three million, six hundred forty-five thousand, three hundred forty-four".