7550 has 12 divisors (see below), whose sum is σ = 14136. Its totient is φ = 3000.

The previous prime is 7549. The next prime is 7559. The reversal of 7550 is 557.

7550 = T₁₁ + T₁₂ + ... + T₃₅.

It is a Curzon number.

It is a plaindrome in base 13.

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 (7559) 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, 26 + ... + 125.

It is an arithmetic number, because the mean of its divisors is an integer number (1178).

2⁷⁵⁵⁰ is an apocalyptic number.

7550 is a deficient number, since it is larger than the sum of its proper divisors (6586).

7550 is a wasteful number, since it uses less digits than its factorization.

7550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 17.

The square root of 7550 is about 86.8907359849. The cubic root of 7550 is about 19.6177404282.

It can be divided in two parts, 75 and 50, that added together give a cube (125 = 5³).

The spelling of 7550 in words is "seven thousand, five hundred fifty".