75550 has 12 divisors (see below), whose sum is σ = 140616. Its totient is φ = 30200.

The previous prime is 75541. The next prime is 75553. The reversal of 75550 is 5557.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 706 + ... + 805.

It is an arithmetic number, because the mean of its divisors is an integer number (11718).

2⁷⁵⁵⁵⁰ is an apocalyptic number.

75550 is a deficient number, since it is larger than the sum of its proper divisors (65066).

75550 is a wasteful number, since it uses less digits than its factorization.

75550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 875, while the sum is 22.

The square root of 75550 is about 274.8636025377. The cubic root of 75550 is about 42.2744685128.

It can be divided in two parts, 75 and 550, that added together give a 4-th power (625 = 5⁴).

The spelling of 75550 in words is "seventy-five thousand, five hundred fifty".