242542550 has 24 divisors (see below), whose sum is σ = 452146656. Its totient is φ = 96798240.

The previous prime is 242542541. The next prime is 242542591. The reversal of 242542550 is 55245242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17912 + ... + 28388.

It is an arithmetic number, because the mean of its divisors is an integer number (18839444).

Almost surely, 2^242542550 is an apocalyptic number.

242542550 is a deficient number, since it is larger than the sum of its proper divisors (209604106).

242542550 is a wasteful number, since it uses less digits than its factorization.

242542550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10952 (or 10947 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 242542550 is about 15573.7776406368. Note that the first 3 decimals coincide. The cubic root of 242542550 is about 623.6333230221.

Adding to 242542550 its reverse (55245242), we get a palindrome (297787792).

The spelling of 242542550 in words is "two hundred forty-two million, five hundred forty-two thousand, five hundred fifty".