55655940 has 48 divisors (see below), whose sum is σ = 164041920. Its totient is φ = 14060160.

The previous prime is 55655927. The next prime is 55655953. The reversal of 55655940 is 4955655.

It is an interprime number because it is at equal distance from previous prime (55655927) and next prime (55655953).

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, 23271 + ... + 25550.

It is an arithmetic number, because the mean of its divisors is an integer number (3417540).

Almost surely, 2^55655940 is an apocalyptic number.

It is an amenable number.

55655940 is an abundant number, since it is smaller than the sum of its proper divisors (108385980).

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

55655940 is a wasteful number, since it uses less digits than its factorization.

55655940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48852 (or 48850 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 55655940 is about 7460.2908790475. The cubic root of 55655940 is about 381.8010989059.

The spelling of 55655940 in words is "fifty-five million, six hundred fifty-five thousand, nine hundred forty".