55174284 has 120 divisors (see below), whose sum is σ = 159900048. Its totient is φ = 16450560.

The previous prime is 55174283. The next prime is 55174303. The reversal of 55174284 is 48247155.

55174284 = 642² + 643² + ... + 754².

It is a super-3 number, since 3×55174284³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 (55174283) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 402664 + ... + 402800.

Almost surely, 2^55174284 is an apocalyptic number.

55174284 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55174284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79950024).

55174284 is an abundant number, since it is smaller than the sum of its proper divisors (104725764).

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

55174284 is a wasteful number, since it uses less digits than its factorization.

55174284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 266 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 55174284 is about 7427.9394181698. The cubic root of 55174284 is about 380.6965157183.

It can be divided in two parts, 5517 and 4284, that added together give a square (9801 = 99²).

The spelling of 55174284 in words is "fifty-five million, one hundred seventy-four thousand, two hundred eighty-four".