55148984 has 16 divisors (see below), whose sum is σ = 112804920. Its totient is φ = 25067680.

The previous prime is 55148983. The next prime is 55148987. The reversal of 55148984 is 48984155.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55148983) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 313259 + ... + 313434.

Almost surely, 2^55148984 is an apocalyptic number.

It is an amenable number.

55148984 is an abundant number, since it is smaller than the sum of its proper divisors (57655936).

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

55148984 is a wasteful number, since it uses less digits than its factorization.

55148984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626710 (or 626706 counting only the distinct ones).

The product of its digits is 230400, while the sum is 44.

The square root of 55148984 is about 7426.2361933889. The cubic root of 55148984 is about 380.6383177457.

The spelling of 55148984 in words is "fifty-five million, one hundred forty-eight thousand, nine hundred eighty-four".