525000253 has 4 divisors (see below), whose sum is σ = 543103740. Its totient is φ = 506896768.

The previous prime is 525000247. The next prime is 525000257. The reversal of 525000253 is 352000525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 229916569 + 295083684 = 15163^2 + 17178^2 .

It is a cyclic number.

It is not a de Polignac number, because 525000253 - 2¹⁷ = 524869181 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 (525000257) 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 3 ways as a sum of consecutive naturals, for example, 9051700 + ... + 9051757.

It is an arithmetic number, because the mean of its divisors is an integer number (135775935).

Almost surely, 2^525000253 is an apocalyptic number.

It is an amenable number.

525000253 is a deficient number, since it is larger than the sum of its proper divisors (18103487).

525000253 is a wasteful number, since it uses less digits than its factorization.

525000253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18103486.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 525000253 is about 22912.8839956912. The cubic root of 525000253 is about 806.7144525987.

Adding to 525000253 its reverse (352000525), we get a palindrome (877000778).

The spelling of 525000253 in words is "five hundred twenty-five million, two hundred fifty-three", and thus it is an aban number.