55554312 has 64 divisors (see below), whose sum is σ = 152559360. Its totient is φ = 16718400.

The previous prime is 55554299. The next prime is 55554313. The reversal of 55554312 is 21345555.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55554312.

It is not an unprimeable number, because it can be changed into a prime (55554313) 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, 42387 + ... + 43677.

It is an arithmetic number, because the mean of its divisors is an integer number (2383740).

Almost surely, 2^55554312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55554312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76279680).

55554312 is an abundant number, since it is smaller than the sum of its proper divisors (97005048).

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

55554312 is a wasteful number, since it uses less digits than its factorization.

55554312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474 (or 1470 counting only the distinct ones).

The product of its digits is 15000, while the sum is 30.

The square root of 55554312 is about 7453.4765042898. The cubic root of 55554312 is about 381.5685671317.

Adding to 55554312 its reverse (21345555), we get a palindrome (76899867).

It can be divided in two parts, 555543 and 12, that added together give a palindrome (555555).

The spelling of 55554312 in words is "fifty-five million, five hundred fifty-four thousand, three hundred twelve".