55692420 has 144 divisors (see below), whose sum is σ = 191136960. Its totient is φ = 12047616.

The previous prime is 55692379. The next prime is 55692443. The reversal of 55692420 is 2429655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55362 + ... + 56358.

It is an arithmetic number, because the mean of its divisors is an integer number (1327340).

Almost surely, 2^55692420 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 55692420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95568480).

55692420 is an abundant number, since it is smaller than the sum of its proper divisors (135444540).

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

55692420 is a wasteful number, since it uses less digits than its factorization.

55692420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 55692420 is about 7462.7354234222. The cubic root of 55692420 is about 381.8844985820.

The spelling of 55692420 in words is "fifty-five million, six hundred ninety-two thousand, four hundred twenty".