55075592 has 64 divisors (see below), whose sum is σ = 125314560. Its totient is φ = 22348800.

The previous prime is 55075591. The next prime is 55075609. The reversal of 55075592 is 29557055.

It is not an unprimeable number, because it can be changed into a prime (55075591) 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, 34688 + ... + 36240.

It is an arithmetic number, because the mean of its divisors is an integer number (1958040).

Almost surely, 2^55075592 is an apocalyptic number.

55075592 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55075592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62657280).

55075592 is an abundant number, since it is smaller than the sum of its proper divisors (70238968).

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

55075592 is a wasteful number, since it uses less digits than its factorization.

55075592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 38.

The square root of 55075592 is about 7421.2931487713. The cubic root of 55075592 is about 380.4693922471.

The spelling of 55075592 in words is "fifty-five million, seventy-five thousand, five hundred ninety-two".