551970 has 24 divisors (see below), whose sum is σ = 1435356. Its totient is φ = 147168.

The previous prime is 551963. The next prime is 551981. The reversal of 551970 is 79155.

It can be written as a sum of positive squares in 2 ways, for example, as 522729 + 29241 = 723^2 + 171^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2977 + ... + 3156.

2⁵⁵¹⁹⁷⁰ is an apocalyptic number.

551970 is an abundant number, since it is smaller than the sum of its proper divisors (883386).

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

551970 is a wasteful number, since it uses less digits than its factorization.

551970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6146 (or 6143 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 27.

The square root of 551970 is about 742.9468352446. The cubic root of 551970 is about 82.0298324925.

It can be divided in two parts, 551 and 970, that added together give a square (1521 = 39²).

The spelling of 551970 in words is "five hundred fifty-one thousand, nine hundred seventy".