2155450435 has 4 divisors (see below), whose sum is σ = 2586540528. Its totient is φ = 1724360344.

The previous prime is 2155450397. The next prime is 2155450439. The reversal of 2155450435 is 5340545512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2155450435 - 2¹¹ = 2155448387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2155450435.

It is not an unprimeable number, because it can be changed into a prime (2155450439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215545039 + ... + 215545048.

It is an arithmetic number, because the mean of its divisors is an integer number (646635132).

Almost surely, 2^2155450435 is an apocalyptic number.

2155450435 is a deficient number, since it is larger than the sum of its proper divisors (431090093).

2155450435 is an equidigital number, since it uses as much as digits as its factorization.

2155450435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431090092.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 2155450435 is about 46426.8288277371. The cubic root of 2155450435 is about 1291.7526074949.

Adding to 2155450435 its reverse (5340545512), we get a palindrome (7495995947).

The spelling of 2155450435 in words is "two billion, one hundred fifty-five million, four hundred fifty thousand, four hundred thirty-five".