5517231431 has 16 divisors (see below), whose sum is σ = 5704560000. Its totient is φ = 5332055040.

The previous prime is 5517231427. The next prime is 5517231497. The reversal of 5517231431 is 1341327155.

It is a cyclic number.

It is not a de Polignac number, because 5517231431 - 2² = 5517231427 is a prime.

It is a super-2 number, since 2×5517231431² = 60879685326428615522, 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 (5517231331) 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, 4416695 + ... + 4417943.

It is an arithmetic number, because the mean of its divisors is an integer number (356535000).

Almost surely, 2^5517231431 is an apocalyptic number.

5517231431 is a deficient number, since it is larger than the sum of its proper divisors (187328569).

5517231431 is a wasteful number, since it uses less digits than its factorization.

5517231431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994.

The product of its digits is 12600, while the sum is 32.

The square root of 5517231431 is about 74278.0683041771. The cubic root of 5517231431 is about 1767.0156687074.

Adding to 5517231431 its reverse (1341327155), we get a palindrome (6858558586).

The spelling of 5517231431 in words is "five billion, five hundred seventeen million, two hundred thirty-one thousand, four hundred thirty-one".