55122984 has 64 divisors (see below), whose sum is σ = 174998400. Its totient is φ = 15748992.

The previous prime is 55122979. The next prime is 55122989. The reversal of 55122984 is 48922155.

55122984 is a `hidden beast` number, since 551 + 2 + 29 + 84 = 666.

It is an interprime number because it is at equal distance from previous prime (55122979) and next prime (55122989).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55122989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16717 + ... + 19740.

It is an arithmetic number, because the mean of its divisors is an integer number (2734350).

Almost surely, 2^55122984 is an apocalyptic number.

55122984 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55122984 is an abundant number, since it is smaller than the sum of its proper divisors (119875416).

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

55122984 is a wasteful number, since it uses less digits than its factorization.

55122984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36479 (or 36469 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 55122984 is about 7424.4854367155. The cubic root of 55122984 is about 380.5784910049.

The spelling of 55122984 in words is "fifty-five million, one hundred twenty-two thousand, nine hundred eighty-four".