55431162142 has 16 divisors (see below), whose sum is σ = 85521245040. Its totient is φ = 26930760192.

The previous prime is 55431162133. The next prime is 55431162161. The reversal of 55431162142 is 24126113455.

It is a super-2 number, since 2×55431162142² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55431162098 and 55431162107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1653217 + ... + 1686412.

It is an arithmetic number, because the mean of its divisors is an integer number (5345077815).

Almost surely, 2^55431162142 is an apocalyptic number.

55431162142 is a deficient number, since it is larger than the sum of its proper divisors (30090082898).

55431162142 is a wasteful number, since it uses less digits than its factorization.

55431162142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339867.

The product of its digits is 28800, while the sum is 34.

Adding to 55431162142 its reverse (24126113455), we get a palindrome (79557275597).

The spelling of 55431162142 in words is "fifty-five billion, four hundred thirty-one million, one hundred sixty-two thousand, one hundred forty-two".