242500505 has 8 divisors (see below), whose sum is σ = 313385352. Its totient is φ = 179077248.

The previous prime is 242500487. The next prime is 242500513. The reversal of 242500505 is 505005242.

242500505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7706176 + 234794329 = 2776^2 + 15323^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242500505 - 2⁶ = 242500441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1865324 + ... + 1865453.

It is an arithmetic number, because the mean of its divisors is an integer number (39173169).

Almost surely, 2^242500505 is an apocalyptic number.

It is an amenable number.

242500505 is a deficient number, since it is larger than the sum of its proper divisors (70884847).

242500505 is a wasteful number, since it uses less digits than its factorization.

242500505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730795.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 242500505 is about 15572.4277169618. The cubic root of 242500505 is about 623.5972851140.

Adding to 242500505 its reverse (505005242), we get a palindrome (747505747).

The spelling of 242500505 in words is "two hundred forty-two million, five hundred thousand, five hundred five".