55531404140 has 12 divisors (see below), whose sum is σ = 116615948736. Its totient is φ = 22212561648.

The previous prime is 55531404113. The next prime is 55531404151. The reversal of 55531404140 is 4140413555.

It is a junction number, because it is equal to n+sod(n) for n = 55531404097 and 55531404106.

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, 1388285084 + ... + 1388285123.

It is an arithmetic number, because the mean of its divisors is an integer number (9717995728).

Almost surely, 2^55531404140 is an apocalyptic number.

It is an amenable number.

55531404140 is an abundant number, since it is smaller than the sum of its proper divisors (61084544596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55531404140 is a wasteful number, since it uses less digits than its factorization.

55531404140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776570216 (or 2776570214 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 55531404140 its reverse (4140413555), we get a palindrome (59671817695).

The spelling of 55531404140 in words is "fifty-five billion, five hundred thirty-one million, four hundred four thousand, one hundred forty".