525778253 has 16 divisors (see below), whose sum is σ = 705941376. Its totient is φ = 378181440.

The previous prime is 525778249. The next prime is 525778271. The reversal of 525778253 is 352877525.

It is not a de Polignac number, because 525778253 - 2² = 525778249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525778223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261626 + ... + 263627.

It is an arithmetic number, because the mean of its divisors is an integer number (44121336).

Almost surely, 2^525778253 is an apocalyptic number.

It is an amenable number.

525778253 is a deficient number, since it is larger than the sum of its proper divisors (180163123).

525778253 is a wasteful number, since it uses less digits than its factorization.

525778253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525284.

The product of its digits is 588000, while the sum is 44.

The square root of 525778253 is about 22929.8550584167. The cubic root of 525778253 is about 807.1127470563.

Multiplying 525778253 by its sum of digits (44), we get a palindrome (23134243132).

The spelling of 525778253 in words is "five hundred twenty-five million, seven hundred seventy-eight thousand, two hundred fifty-three".