52505252505253 has 8 divisors (see below), whose sum is σ = 54367557111000. Its totient is φ = 50646399810048.

The previous prime is 52505252505107. The next prime is 52505252505317. The reversal of 52505252505253 is 35250525250525.

It can be written as a sum of positive squares in 4 ways, for example, as 5115273319809 + 47389979185444 = 2261697^2 + 6884038^2 .

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-52505252505253 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 (52505252502253) 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, 862946676 + ... + 863007517.

It is an arithmetic number, because the mean of its divisors is an integer number (6795944638875).

Almost surely, 2^{52505252505253} is an apocalyptic number.

It is an amenable number.

52505252505253 is a deficient number, since it is larger than the sum of its proper divisors (1862304605747).

52505252505253 is a wasteful number, since it uses less digits than its factorization.

52505252505253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725955271.

The product of its (nonzero) digits is 3750000, while the sum is 46.

Adding to 52505252505253 its reverse (35250525250525), we get a palindrome (87755777755778).

The spelling of 52505252505253 in words is "fifty-two trillion, five hundred five billion, two hundred fifty-two million, five hundred five thousand, two hundred fifty-three".