53404525253 has 6 divisors (see below), whose sum is σ = 56363225094. Its totient is φ = 50593760424.

The previous prime is 53404525241. The next prime is 53404525259. The reversal of 53404525253 is 35252540435.

It can be written as a sum of positive squares in only one way, i.e., 39248760769 + 14155764484 = 198113^2 + 118978^2 .

It is a de Polignac number, because none of the positive numbers 2^k-53404525253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53404525259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73967126 + ... + 73967847.

It is an arithmetic number, because the mean of its divisors is an integer number (9393870849).

Almost surely, 2^53404525253 is an apocalyptic number.

It is an amenable number.

53404525253 is a deficient number, since it is larger than the sum of its proper divisors (2958699841).

53404525253 is a wasteful number, since it uses less digits than its factorization.

53404525253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147935011 (or 147934992 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 38.

The spelling of 53404525253 in words is "fifty-three billion, four hundred four million, five hundred twenty-five thousand, two hundred fifty-three".