242525253 has 16 divisors (see below), whose sum is σ = 344494080. Its totient is φ = 151325424.

The previous prime is 242525221. The next prime is 242525287. The reversal of 242525253 is 352525242.

It is not a de Polignac number, because 242525253 - 2⁵ = 242525221 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 242525253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242520253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20901 + ... + 30362.

It is an arithmetic number, because the mean of its divisors is an integer number (21530880).

Almost surely, 2^242525253 is an apocalyptic number.

It is an amenable number.

242525253 is a deficient number, since it is larger than the sum of its proper divisors (101968827).

242525253 is a wasteful number, since it uses less digits than its factorization.

242525253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51368.

The product of its digits is 24000, while the sum is 30.

The square root of 242525253 is about 15573.2223062538. Note that the first 3 decimals coincide. The cubic root of 242525253 is about 623.6184977993.

The spelling of 242525253 in words is "two hundred forty-two million, five hundred twenty-five thousand, two hundred fifty-three".