551357 has 4 divisors (see below), whose sum is σ = 563136. Its totient is φ = 539580.

The previous prime is 551347. The next prime is 551363. The reversal of 551357 is 753155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 551357 - 2¹⁸ = 289213 is a prime.

It is a Duffinian 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 551357.

It is not an unprimeable number, because it can be changed into a prime (551347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5819 + ... + 5912.

It is an arithmetic number, because the mean of its divisors is an integer number (140784).

2⁵⁵¹³⁵⁷ is an apocalyptic number.

It is an amenable number.

551357 is a deficient number, since it is larger than the sum of its proper divisors (11779).

551357 is a wasteful number, since it uses less digits than its factorization.

551357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11778.

The product of its digits is 2625, while the sum is 26.

The square root of 551357 is about 742.5341742977. The cubic root of 551357 is about 81.9994546860. Note that the first 3 decimals are identical.

The spelling of 551357 in words is "five hundred fifty-one thousand, three hundred fifty-seven".