615255 has 8 divisors (see below), whose sum is σ = 984432. Its totient is φ = 328128.

The previous prime is 615253. The next prime is 615259. The reversal of 615255 is 552516.

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

It is not a de Polignac number, because 615255 - 2¹ = 615253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615253) 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, 20494 + ... + 20523.

It is an arithmetic number, because the mean of its divisors is an integer number (123054).

2⁶¹⁵²⁵⁵ is an apocalyptic number.

615255 is a deficient number, since it is larger than the sum of its proper divisors (369177).

615255 is a wasteful number, since it uses less digits than its factorization.

615255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41025.

The product of its digits is 1500, while the sum is 24.

The square root of 615255 is about 784.3819222802. The cubic root of 615255 is about 85.0521018517.

The spelling of 615255 in words is "six hundred fifteen thousand, two hundred fifty-five".