55434620 has 48 divisors (see below), whose sum is σ = 125919360. Its totient is φ = 20419584.

The previous prime is 55434601. The next prime is 55434653. The reversal of 55434620 is 2643455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14246 + ... + 17714.

It is an arithmetic number, because the mean of its divisors is an integer number (2623320).

Almost surely, 2^55434620 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 55434620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62959680).

55434620 is an abundant number, since it is smaller than the sum of its proper divisors (70484740).

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

55434620 is a wasteful number, since it uses less digits than its factorization.

55434620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542 (or 3540 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 55434620 is about 7445.4429015338. The cubic root of 55434620 is about 381.2943397324.

The spelling of 55434620 in words is "fifty-five million, four hundred thirty-four thousand, six hundred twenty".