2553403123 has 4 divisors (see below), whose sum is σ = 2572041240. Its totient is φ = 2534765008.

The previous prime is 2553403117. The next prime is 2553403129. The reversal of 2553403123 is 3213043552.

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

It is an interprime number because it is at equal distance from previous prime (2553403117) and next prime (2553403129).

It is a cyclic number.

It is not a de Polignac number, because 2553403123 - 2⁹ = 2553402611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2553403091 and 2553403100.

It is not an unprimeable number, because it can be changed into a prime (2553403129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9318853 + ... + 9319126.

It is an arithmetic number, because the mean of its divisors is an integer number (643010310).

Almost surely, 2^2553403123 is an apocalyptic number.

2553403123 is a deficient number, since it is larger than the sum of its proper divisors (18638117).

2553403123 is a wasteful number, since it uses less digits than its factorization.

2553403123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18638116.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 2553403123 is about 50531.2093957784. The cubic root of 2553403123 is about 1366.8046943745.

Adding to 2553403123 its reverse (3213043552), we get a palindrome (5766446675).

The spelling of 2553403123 in words is "two billion, five hundred fifty-three million, four hundred three thousand, one hundred twenty-three".