2421255 has 32 divisors (see below), whose sum is σ = 4128768. Its totient is φ = 1209600.

The previous prime is 2421253. The next prime is 2421277. The reversal of 2421255 is 5521242.

It is a happy number.

It is not a de Polignac number, because 2421255 - 2¹ = 2421253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19002 + ... + 19128.

It is an arithmetic number, because the mean of its divisors is an integer number (129024).

2^2421255 is an apocalyptic number.

2421255 is a deficient number, since it is larger than the sum of its proper divisors (1707513).

2421255 is a wasteful number, since it uses less digits than its factorization.

2421255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207.

The product of its digits is 800, while the sum is 21.

The square root of 2421255 is about 1556.0382386047. The cubic root of 2421255 is about 134.2806733002.

Adding to 2421255 its reverse (5521242), we get a palindrome (7942497).

The spelling of 2421255 in words is "two million, four hundred twenty-one thousand, two hundred fifty-five".