551275 has 6 divisors (see below), whose sum is σ = 683612. Its totient is φ = 441000.

The previous prime is 551269. The next prime is 551281. The reversal of 551275 is 572155.

It is a happy number.

551275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (551269) and next prime (551281).

It is not a de Polignac number, because 551275 - 2⁹ = 550763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 22051 = 551275 / (5 + 5 + 1 + 2 + 7 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11001 + ... + 11050.

2⁵⁵¹²⁷⁵ is an apocalyptic number.

551275 is a deficient number, since it is larger than the sum of its proper divisors (132337).

551275 is a wasteful number, since it uses less digits than its factorization.

551275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22061 (or 22056 counting only the distinct ones).

The product of its digits is 1750, while the sum is 25.

The square root of 551275 is about 742.4789559307. The cubic root of 551275 is about 81.9953893898.

It can be divided in two parts, 551 and 275, that multiplied together give a triangular number (151525 = T₅₅₀).

The spelling of 551275 in words is "five hundred fifty-one thousand, two hundred seventy-five".