52505253 has 12 divisors (see below), whose sum is σ = 78650208. Its totient is φ = 35003340.

The previous prime is 52505249. The next prime is 52505261. The reversal of 52505253 is 35250525.

It is not a de Polignac number, because 52505253 - 2² = 52505249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107793 + ... + 108278.

It is an arithmetic number, because the mean of its divisors is an integer number (6554184).

Almost surely, 2^52505253 is an apocalyptic number.

It is an amenable number.

52505253 is a deficient number, since it is larger than the sum of its proper divisors (26144955).

52505253 is an equidigital number, since it uses as much as digits as its factorization.

52505253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216086 (or 216074 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 52505253 is about 7246.0508554660. The cubic root of 52505253 is about 374.4561075307.

Adding to 52505253 its reverse (35250525), we get a palindrome (87755778).

The spelling of 52505253 in words is "fifty-two million, five hundred five thousand, two hundred fifty-three".