55492320 has 96 divisors (see below), whose sum is σ = 188268192. Its totient is φ = 13658112.

The previous prime is 55492313. The next prime is 55492321. The reversal of 55492320 is 2329455.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55492321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1794 + ... + 10686.

It is an arithmetic number, because the mean of its divisors is an integer number (1961127).

Almost surely, 2^55492320 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 55492320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94134096).

55492320 is an abundant number, since it is smaller than the sum of its proper divisors (132775872).

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

55492320 is a wasteful number, since it uses less digits than its factorization.

55492320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8924 (or 8916 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 55492320 is about 7449.3167471923. The cubic root of 55492320 is about 381.4265859386.

The spelling of 55492320 in words is "fifty-five million, four hundred ninety-two thousand, three hundred twenty".