255050120240421 has 16 divisors (see below), whose sum is σ = 387111644951040. Its totient is φ = 147855142167920.

The previous prime is 255050120240413. The next prime is 255050120240459. The reversal of 255050120240421 is 124042021050552.

It is not a de Polignac number, because 255050120240421 - 2³ = 255050120240413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255050120240401) 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, 168017206251 + ... + 168017207768.

It is an arithmetic number, because the mean of its divisors is an integer number (24194477809440).

Almost surely, 2^{255050120240421} is an apocalyptic number.

It is an amenable number.

255050120240421 is a deficient number, since it is larger than the sum of its proper divisors (132061524710619).

255050120240421 is a wasteful number, since it uses less digits than its factorization.

255050120240421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336034414056.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 255050120240421 its reverse (124042021050552), we get a palindrome (379092141290973).

The spelling of 255050120240421 in words is "two hundred fifty-five trillion, fifty billion, one hundred twenty million, two hundred forty thousand, four hundred twenty-one".