619255 has 16 divisors (see below), whose sum is σ = 915264. Its totient is φ = 391680.

The previous prime is 619253. The next prime is 619261. The reversal of 619255 is 552916.

619255 = T₁₈₈ + T₁₈₉ + ... + T₂₁₇.

619255 is nontrivially palindromic in base 9.

It is not a de Polignac number, because 619255 - 2¹ = 619253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226 + ... + 1135.

It is an arithmetic number, because the mean of its divisors is an integer number (57204).

2⁶¹⁹²⁵⁵ is an apocalyptic number.

619255 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

619255 is a deficient number, since it is larger than the sum of its proper divisors (296009).

619255 is a wasteful number, since it uses less digits than its factorization.

619255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386.

The product of its digits is 2700, while the sum is 28.

The square root of 619255 is about 786.9275697293. The cubic root of 619255 is about 85.2360222236.

It can be divided in two parts, 61 and 9255, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 619255 in words is "six hundred nineteen thousand, two hundred fifty-five".