55316940 has 48 divisors (see below), whose sum is σ = 177015552. Its totient is φ = 12643776.

The previous prime is 55316939. The next prime is 55316951. The reversal of 55316940 is 4961355.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65434 + ... + 66273.

It is an arithmetic number, because the mean of its divisors is an integer number (3687824).

Almost surely, 2^55316940 is an apocalyptic number.

It is an amenable number.

55316940 is an abundant number, since it is smaller than the sum of its proper divisors (121698612).

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

55316940 is a wasteful number, since it uses less digits than its factorization.

55316940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131726 (or 131724 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 55316940 is about 7437.5358822664. The cubic root of 55316940 is about 381.0243369385.

The spelling of 55316940 in words is "fifty-five million, three hundred sixteen thousand, nine hundred forty".