55731403142 has 8 divisors (see below), whose sum is σ = 84255350016. Its totient is φ = 27646286472.

The previous prime is 55731403139. The next prime is 55731403223. The reversal of 55731403142 is 24130413755.

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

It is a super-2 number, since 2×55731403142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109707233 + ... + 109707740.

It is an arithmetic number, because the mean of its divisors is an integer number (10531918752).

Almost surely, 2^55731403142 is an apocalyptic number.

55731403142 is a deficient number, since it is larger than the sum of its proper divisors (28523946874).

55731403142 is a wasteful number, since it uses less digits than its factorization.

55731403142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219415102.

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 55731403142 its reverse (24130413755), we get a palindrome (79861816897).

The spelling of 55731403142 in words is "fifty-five billion, seven hundred thirty-one million, four hundred three thousand, one hundred forty-two".