551654 has 4 divisors (see below), whose sum is σ = 827484. Its totient is φ = 275826.

The previous prime is 551653. The next prime is 551659. The reversal of 551654 is 456155.

551654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551654.

It is not an unprimeable number, because it can be changed into a prime (551651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137912 + ... + 137915.

It is an arithmetic number, because the mean of its divisors is an integer number (206871).

2⁵⁵¹⁶⁵⁴ is an apocalyptic number.

551654 is a deficient number, since it is larger than the sum of its proper divisors (275830).

551654 is a wasteful number, since it uses less digits than its factorization.

551654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275829.

The product of its digits is 3000, while the sum is 26.

The square root of 551654 is about 742.7341381679. The cubic root of 551654 is about 82.0141756179.

The spelling of 551654 in words is "five hundred fifty-one thousand, six hundred fifty-four".