242553554 has 4 divisors (see below), whose sum is σ = 363830334. Its totient is φ = 121276776.

The previous prime is 242553551. The next prime is 242553613. The reversal of 242553554 is 455355242.

242553554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 142253329 + 100300225 = 11927^2 + 10015^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242553551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60638387 + ... + 60638390.

Almost surely, 2^242553554 is an apocalyptic number.

242553554 is a deficient number, since it is larger than the sum of its proper divisors (121276780).

242553554 is a wasteful number, since it uses less digits than its factorization.

242553554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121276779.

The product of its digits is 120000, while the sum is 35.

The square root of 242553554 is about 15574.1309227835. The cubic root of 242553554 is about 623.6427541608.

The spelling of 242553554 in words is "two hundred forty-two million, five hundred fifty-three thousand, five hundred fifty-four".