2455531121 has 4 divisors (see below), whose sum is σ = 2507776512. Its totient is φ = 2403285732.

The previous prime is 2455531109. The next prime is 2455531147. The reversal of 2455531121 is 1211355542.

2455531121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2455531121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2455531151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26122625 + ... + 26122718.

It is an arithmetic number, because the mean of its divisors is an integer number (626944128).

Almost surely, 2^2455531121 is an apocalyptic number.

It is an amenable number.

2455531121 is a deficient number, since it is larger than the sum of its proper divisors (52245391).

2455531121 is an equidigital number, since it uses as much as digits as its factorization.

2455531121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52245390.

The product of its digits is 6000, while the sum is 29.

The square root of 2455531121 is about 49553.3159435370. The cubic root of 2455531121 is about 1349.1134775881.

Adding to 2455531121 its reverse (1211355542), we get a palindrome (3666886663).

The spelling of 2455531121 in words is "two billion, four hundred fifty-five million, five hundred thirty-one thousand, one hundred twenty-one".