155253 has 8 divisors (see below), whose sum is σ = 236608. Its totient is φ = 88704.

The previous prime is 155251. The next prime is 155269. The reversal of 155253 is 352551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155253 - 2¹ = 155251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 7393 = 155253 / (1 + 5 + 5 + 2 + 5 + 3).

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

155253 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155251) 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 7 ways as a sum of consecutive naturals, for example, 3676 + ... + 3717.

It is an arithmetic number, because the mean of its divisors is an integer number (29576).

2¹⁵⁵²⁵³ is an apocalyptic number.

It is an amenable number.

155253 is a deficient number, since it is larger than the sum of its proper divisors (81355).

155253 is an equidigital number, since it uses as much as digits as its factorization.

155253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403.

The product of its digits is 750, while the sum is 21.

The square root of 155253 is about 394.0215730135. The cubic root of 155253 is about 53.7460642512.

The spelling of 155253 in words is "one hundred fifty-five thousand, two hundred fifty-three".