55213043000 has 64 divisors (see below), whose sum is σ = 130342137120. Its totient is φ = 21889728000.

The previous prime is 55213042987. The next prime is 55213043069. The reversal of 55213043000 is 34031255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131306 + ... + 357305.

Almost surely, 2^55213043000 is an apocalyptic number.

55213043000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55213043000 is an abundant number, since it is smaller than the sum of its proper divisors (75129094120).

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

55213043000 is a wasteful number, since it uses less digits than its factorization.

55213043000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488745 (or 488731 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 55213043000 its reverse (34031255), we get a palindrome (55247074255).

The spelling of 55213043000 in words is "fifty-five billion, two hundred thirteen million, forty-three thousand".