55238544 has 40 divisors (see below), whose sum is σ = 158556320. Its totient is φ = 18412704.

The previous prime is 55238539. The next prime is 55238569. The reversal of 55238544 is 44583255.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 55238499 and 55238508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63502 + ... + 64365.

It is an arithmetic number, because the mean of its divisors is an integer number (3963908).

Almost surely, 2^55238544 is an apocalyptic number.

55238544 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55238544 is an abundant number, since it is smaller than the sum of its proper divisors (103317776).

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

55238544 is a wasteful number, since it uses less digits than its factorization.

55238544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127884 (or 127872 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 55238544 is about 7432.2637197559. The cubic root of 55238544 is about 380.8442540312.

The spelling of 55238544 in words is "fifty-five million, two hundred thirty-eight thousand, five hundred forty-four".