55000434 has 64 divisors (see below), whose sum is σ = 118444032. Its totient is φ = 17001600.

The previous prime is 55000403. The next prime is 55000469. The reversal of 55000434 is 43400055.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55000434.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 774619 + ... + 774689.

It is an arithmetic number, because the mean of its divisors is an integer number (1850688).

Almost surely, 2^55000434 is an apocalyptic number.

55000434 is an abundant number, since it is smaller than the sum of its proper divisors (63443598).

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

55000434 is a wasteful number, since it uses less digits than its factorization.

55000434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 55000434 is about 7416.2277473120. The cubic root of 55000434 is about 380.2962463652.

Adding to 55000434 its reverse (43400055), we get a palindrome (98400489).

The spelling of 55000434 in words is "fifty-five million, four hundred thirty-four", and thus it is an aban number.