5111231551 has 8 divisors (see below), whose sum is σ = 5132768000. Its totient is φ = 5089741272.

The previous prime is 5111231539. The next prime is 5111231561. The reversal of 5111231551 is 1551321115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5111231551 - 2²¹ = 5109134399 is a prime.

It is a super-2 number, since 2×5111231551² = 52249375935875731202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111231501) 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 7 ways as a sum of consecutive naturals, for example, 219976 + ... + 242098.

It is an arithmetic number, because the mean of its divisors is an integer number (641596000).

Almost surely, 2^5111231551 is an apocalyptic number.

5111231551 is a deficient number, since it is larger than the sum of its proper divisors (21536449).

5111231551 is a wasteful number, since it uses less digits than its factorization.

5111231551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23085.

The product of its digits is 750, while the sum is 25.

The square root of 5111231551 is about 71492.8776242781. The cubic root of 5111231551 is about 1722.5632809229.

Adding to 5111231551 its reverse (1551321115), we get a palindrome (6662552666).

The spelling of 5111231551 in words is "five billion, one hundred eleven million, two hundred thirty-one thousand, five hundred fifty-one".