755550 has 72 divisors (see below), whose sum is σ = 2147184. Its totient is φ = 190080.

The previous prime is 755539. The next prime is 755551. The reversal of 755550 is 55557.

It is a Curzon number.

It is a nialpdrome in base 10 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755551) by changing a digit.

755550 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10314 + ... + 10386.

It is an arithmetic number, because the mean of its divisors is an integer number (29822).

2⁷⁵⁵⁵⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 755550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1073592).

755550 is an abundant number, since it is smaller than the sum of its proper divisors (1391634).

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

755550 is a wasteful number, since it uses less digits than its factorization.

755550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 4375, while the sum is 27.

The square root of 755550 is about 869.2237916670. The cubic root of 755550 is about 91.0795906344.

It can be divided in two parts, 75 and 5550, that added together give a square (5625 = 75²).

The spelling of 755550 in words is "seven hundred fifty-five thousand, five hundred fifty".