242556501 has 16 divisors (see below), whose sum is σ = 356051520. Its totient is φ = 145653120.

The previous prime is 242556487. The next prime is 242556511. The reversal of 242556501 is 105655242.

It is not a de Polignac number, because 242556501 - 2⁶ = 242556437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242556511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30120 + ... + 37313.

It is an arithmetic number, because the mean of its divisors is an integer number (22253220).

Almost surely, 2^242556501 is an apocalyptic number.

It is an amenable number.

242556501 is a deficient number, since it is larger than the sum of its proper divisors (113495019).

242556501 is a wasteful number, since it uses less digits than its factorization.

242556501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67556.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 242556501 is about 15574.2255345170. The cubic root of 242556501 is about 623.6452798817.

The spelling of 242556501 in words is "two hundred forty-two million, five hundred fifty-six thousand, five hundred one".