5131043551 has 4 divisors (see below), whose sum is σ = 5136191032. Its totient is φ = 5125896072.

The previous prime is 5131043539. The next prime is 5131043569. The reversal of 5131043551 is 1553401315.

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 5131043551 - 2¹⁹ = 5130519263 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 (5131043521) 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, 2572245 + ... + 2574238.

It is an arithmetic number, because the mean of its divisors is an integer number (1284047758).

Almost surely, 2^5131043551 is an apocalyptic number.

5131043551 is a deficient number, since it is larger than the sum of its proper divisors (5147481).

5131043551 is an equidigital number, since it uses as much as digits as its factorization.

5131043551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5147480.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 5131043551 is about 71631.3028710214. The cubic root of 5131043551 is about 1724.7860605363.

Adding to 5131043551 its reverse (1553401315), we get a palindrome (6684444866).

The spelling of 5131043551 in words is "five billion, one hundred thirty-one million, forty-three thousand, five hundred fifty-one".