1553355 has 12 divisors (see below), whose sum is σ = 2692560. Its totient is φ = 828432.

The previous prime is 1553347. The next prime is 1553369. The reversal of 1553355 is 5533551.

It is not a de Polignac number, because 1553355 - 2³ = 1553347 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17215 + ... + 17304.

It is an arithmetic number, because the mean of its divisors is an integer number (224380).

2^1553355 is an apocalyptic number.

1553355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1553355 is a deficient number, since it is larger than the sum of its proper divisors (1139205).

1553355 is a wasteful number, since it uses less digits than its factorization.

1553355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34530 (or 34527 counting only the distinct ones).

The product of its digits is 5625, while the sum is 27.

The square root of 1553355 is about 1246.3366318936. The cubic root of 1553355 is about 115.8128919757.

It can be divided in two parts, 155 and 3355, that multiplied together give a palindrome (520025).

The spelling of 1553355 in words is "one million, five hundred fifty-three thousand, three hundred fifty-five".