525781803253 has 16 divisors (see below), whose sum is σ = 632562030720. Its totient is φ = 426921903936.

The previous prime is 525781803229. The next prime is 525781803293. The reversal of 525781803253 is 352308187525.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525781803253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525781803197 and 525781803206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525781803293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1975875 + ... + 2226127.

It is an arithmetic number, because the mean of its divisors is an integer number (39535126920).

Almost surely, 2^525781803253 is an apocalyptic number.

It is an amenable number.

525781803253 is a deficient number, since it is larger than the sum of its proper divisors (106780227467).

525781803253 is a wasteful number, since it uses less digits than its factorization.

525781803253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266076.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 525781803253 in words is "five hundred twenty-five billion, seven hundred eighty-one million, eight hundred three thousand, two hundred fifty-three".