55582758 has 144 divisors (see below), whose sum is σ = 162296784. Its totient is φ = 13547520.

The previous prime is 55582753. The next prime is 55582759. The reversal of 55582758 is 85728555.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55582753) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 164766 + ... + 165102.

It is an arithmetic number, because the mean of its divisors is an integer number (1127061).

Almost surely, 2^55582758 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55582758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81148392).

55582758 is an abundant number, since it is smaller than the sum of its proper divisors (106714026).

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

55582758 is a wasteful number, since it uses less digits than its factorization.

55582758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 377 counting only the distinct ones).

The product of its digits is 560000, while the sum is 45.

The square root of 55582758 is about 7455.3844971269. The cubic root of 55582758 is about 381.6336820737.

The spelling of 55582758 in words is "fifty-five million, five hundred eighty-two thousand, seven hundred fifty-eight".