5131533551 has 16 divisors (see below), whose sum is σ = 5248231296. Its totient is φ = 5016201696.

The previous prime is 5131533541. The next prime is 5131533569. The reversal of 5131533551 is 1553351315.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5131533551 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 (5131533541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6519980 + ... + 6520766.

It is an arithmetic number, because the mean of its divisors is an integer number (328014456).

Almost surely, 2^5131533551 is an apocalyptic number.

5131533551 is a deficient number, since it is larger than the sum of its proper divisors (116697745).

5131533551 is a wasteful number, since it uses less digits than its factorization.

5131533551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478.

The product of its digits is 16875, while the sum is 32.

The square root of 5131533551 is about 71634.7230817569. The cubic root of 5131533551 is about 1724.8409628357.

Adding to 5131533551 its reverse (1553351315), we get a palindrome (6684884866).

The spelling of 5131533551 in words is "five billion, one hundred thirty-one million, five hundred thirty-three thousand, five hundred fifty-one".