53000053 has 8 divisors (see below), whose sum is σ = 54540216. Its totient is φ = 51480000.

The previous prime is 53000047. The next prime is 53000069. The reversal of 53000053 is 35000035.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41757444 + 11242609 = 6462^2 + 3353^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53000053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53000153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403 + ... + 10303.

It is an arithmetic number, because the mean of its divisors is an integer number (6817527).

Almost surely, 2^53000053 is an apocalyptic number.

53000053 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

53000053 is a deficient number, since it is larger than the sum of its proper divisors (1540163).

53000053 is a wasteful number, since it uses less digits than its factorization.

53000053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055.

The product of its (nonzero) digits is 225, while the sum is 16.

The square root of 53000053 is about 7280.1135293346. The cubic root of 53000053 is about 375.6287006316.

Multiplying 53000053 by its sum of digits (16), we get a palindrome (848000848).

Adding to 53000053 its reverse (35000035), we get a palindrome (88000088).

It can be divided in two parts, 530000 and 53, that multiplied together give a square (28090000 = 5300²).

The spelling of 53000053 in words is "fifty-three million, fifty-three", and thus it is an aban number and an uban number.