242797555 has 64 divisors (see below), whose sum is σ = 395136000. Its totient is φ = 138309120.

The previous prime is 242797427. The next prime is 242797603. The reversal of 242797555 is 555797242.

It is not a de Polignac number, because 242797555 - 2⁷ = 242797427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 695521 + ... + 695869.

It is an arithmetic number, because the mean of its divisors is an integer number (6174000).

Almost surely, 2^242797555 is an apocalyptic number.

242797555 is a deficient number, since it is larger than the sum of its proper divisors (152338445).

242797555 is a wasteful number, since it uses less digits than its factorization.

242797555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524.

The product of its digits is 882000, while the sum is 46.

The square root of 242797555 is about 15581.9624887239. The cubic root of 242797555 is about 623.8518055308.

It can be divided in two parts, 242 and 797555, that added together give a palindrome (797797).

The spelling of 242797555 in words is "two hundred forty-two million, seven hundred ninety-seven thousand, five hundred fifty-five".