55406592 has 130 divisors (see below), whose sum is σ = 166506648. Its totient is φ = 18358272.

The previous prime is 55406591. The next prime is 55406599. The reversal of 55406592 is 29560455.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55406591) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 331693 + ... + 331859.

Almost surely, 2^55406592 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 55406592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83253324).

55406592 is an abundant number, since it is smaller than the sum of its proper divisors (111100056).

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

55406592 is an equidigital number, since it uses as much as digits as its factorization.

55406592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 55406592 is about 7443.5604383924. The cubic root of 55406592 is about 381.2300675058.

The spelling of 55406592 in words is "fifty-five million, four hundred six thousand, five hundred ninety-two".