242242725 has 24 divisors (see below), whose sum is σ = 402063552. Its totient is φ = 128694400.

The previous prime is 242242717. The next prime is 242242769. The reversal of 242242725 is 527242242.

It is not a de Polignac number, because 242242725 - 2³ = 242242717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242242692 and 242242701.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13585 + ... + 25865.

It is an arithmetic number, because the mean of its divisors is an integer number (16752648).

Almost surely, 2^242242725 is an apocalyptic number.

242242725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242242725 is a deficient number, since it is larger than the sum of its proper divisors (159820827).

242242725 is a wasteful number, since it uses less digits than its factorization.

242242725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12557 (or 12552 counting only the distinct ones).

The product of its digits is 17920, while the sum is 30.

The square root of 242242725 is about 15564.1487078478. The cubic root of 242242725 is about 623.3762437851.

Adding to 242242725 its reverse (527242242), we get a palindrome (769484967).

The spelling of 242242725 in words is "two hundred forty-two million, two hundred forty-two thousand, seven hundred twenty-five".