2551115423 has 4 divisors (see below), whose sum is σ = 2577415680. Its totient is φ = 2524815168.

The previous prime is 2551115417. The next prime is 2551115429. The reversal of 2551115423 is 3245111552.

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 (2551115417) and next prime (2551115429).

It is a cyclic number.

It is not a de Polignac number, because 2551115423 - 2¹⁶ = 2551049887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551115429) 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, 13149983 + ... + 13150176.

It is an arithmetic number, because the mean of its divisors is an integer number (644353920).

Almost surely, 2^2551115423 is an apocalyptic number.

2551115423 is a deficient number, since it is larger than the sum of its proper divisors (26300257).

2551115423 is an equidigital number, since it uses as much as digits as its factorization.

2551115423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26300256.

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

The square root of 2551115423 is about 50508.5678177475. The cubic root of 2551115423 is about 1366.3963800275.

Adding to 2551115423 its reverse (3245111552), we get a palindrome (5796226975).

The spelling of 2551115423 in words is "two billion, five hundred fifty-one million, one hundred fifteen thousand, four hundred twenty-three".