255242052121 has 8 divisors (see below), whose sum is σ = 304388037504. Its totient is φ = 209266775520.

The previous prime is 255242052119. The next prime is 255242052139. The reversal of 255242052121 is 121250242552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255242052121 - 2¹ = 255242052119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255242052521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792677020 + ... + 792677341.

It is an arithmetic number, because the mean of its divisors is an integer number (38048504688).

Almost surely, 2^255242052121 is an apocalyptic number.

It is an amenable number.

255242052121 is a deficient number, since it is larger than the sum of its proper divisors (49145985383).

255242052121 is a wasteful number, since it uses less digits than its factorization.

255242052121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585354391.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 255242052121 its reverse (121250242552), we get a palindrome (376492294673).

The spelling of 255242052121 in words is "two hundred fifty-five billion, two hundred forty-two million, fifty-two thousand, one hundred twenty-one".