1553359 has 4 divisors (see below), whose sum is σ = 1567720. Its totient is φ = 1539000.

The previous prime is 1553347. The next prime is 1553369. The reversal of 1553359 is 9533551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9533551 = 1471 ⋅6481.

It is a cyclic number.

It is not a de Polignac number, because 1553359 - 2¹⁷ = 1422287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1553359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7017 + ... + 7234.

It is an arithmetic number, because the mean of its divisors is an integer number (391930).

2^1553359 is an apocalyptic number.

1553359 is a deficient number, since it is larger than the sum of its proper divisors (14361).

1553359 is a wasteful number, since it uses less digits than its factorization.

1553359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14360.

The product of its digits is 10125, while the sum is 31.

The square root of 1553359 is about 1246.3382365955. The cubic root of 1553359 is about 115.8129913844.

The spelling of 1553359 in words is "one million, five hundred fifty-three thousand, three hundred fifty-nine".