55503988 has 12 divisors (see below), whose sum is σ = 97189092. Its totient is φ = 27735680.

The previous prime is 55503983. The next prime is 55503989. The reversal of 55503988 is 88930555.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43930384 + 11573604 = 6628^2 + 3402^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55503983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6798 + ... + 12538.

It is an arithmetic number, because the mean of its divisors is an integer number (8099091).

Almost surely, 2^55503988 is an apocalyptic number.

It is an amenable number.

55503988 is a deficient number, since it is larger than the sum of its proper divisors (41685104).

55503988 is a wasteful number, since it uses less digits than its factorization.

55503988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162 (or 8160 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 55503988 is about 7450.0998651025. The cubic root of 55503988 is about 381.4533174065.

The spelling of 55503988 in words is "fifty-five million, five hundred three thousand, nine hundred eighty-eight".