551290 has 16 divisors (see below), whose sum is σ = 1027080. Its totient is φ = 212800.

The previous prime is 551281. The next prime is 551297. The reversal of 551290 is 92155.

551290 = T₄ + T₅ + ... + T₁₄₈.

551290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 323761 + 227529 = 569^2 + 477^2 .

It is not an unprimeable number, because it can be changed into a prime (551297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 1240.

2⁵⁵¹²⁹⁰ is an apocalyptic number.

551290 is a deficient number, since it is larger than the sum of its proper divisors (475790).

551290 is a wasteful number, since it uses less digits than its factorization.

551290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 551290 is about 742.4890571584. The cubic root of 551290 is about 81.9961330717.

It can be divided in two parts, 551 and 290, that added together give a square (841 = 29²).

The spelling of 551290 in words is "five hundred fifty-one thousand, two hundred ninety".