2552455121 has 4 divisors (see below), whose sum is σ = 2553380352. Its totient is φ = 2551529892.

The previous prime is 2552455043. The next prime is 2552455141. The reversal of 2552455121 is 1215542552.

It is a happy number.

2552455121 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 not a de Polignac number, because 2552455121 - 2¹⁸ = 2552192977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2552455141) 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, 458465 + ... + 463998.

It is an arithmetic number, because the mean of its divisors is an integer number (638345088).

Almost surely, 2^2552455121 is an apocalyptic number.

It is an amenable number.

2552455121 is a deficient number, since it is larger than the sum of its proper divisors (925231).

2552455121 is an equidigital number, since it uses as much as digits as its factorization.

2552455121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925230.

The product of its digits is 20000, while the sum is 32.

The square root of 2552455121 is about 50521.8281636759. The cubic root of 2552455121 is about 1366.6355222396.

Adding to 2552455121 its reverse (1215542552), we get a palindrome (3767997673).

The spelling of 2552455121 in words is "two billion, five hundred fifty-two million, four hundred fifty-five thousand, one hundred twenty-one".