240252111242555 has 16 divisors (see below), whose sum is σ = 305265829619520. Its totient is φ = 180893145172992.

The previous prime is 240252111242551. The next prime is 240252111242557. The reversal of 240252111242555 is 555242111252042.

It is a cyclic number.

It is not a de Polignac number, because 240252111242555 - 2² = 240252111242551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240252111242551) 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, 13969199 + ... + 25993128.

It is an arithmetic number, because the mean of its divisors is an integer number (19079114351220).

Almost surely, 2^{240252111242555} is an apocalyptic number.

240252111242555 is a deficient number, since it is larger than the sum of its proper divisors (65013718376965).

240252111242555 is a wasteful number, since it uses less digits than its factorization.

240252111242555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40033078.

The product of its (nonzero) digits is 320000, while the sum is 41.

Adding to 240252111242555 its reverse (555242111252042), we get a palindrome (795494222494597).

The spelling of 240252111242555 in words is "two hundred forty trillion, two hundred fifty-two billion, one hundred eleven million, two hundred forty-two thousand, five hundred fifty-five".