615056 has 20 divisors (see below), whose sum is σ = 1283772. Its totient is φ = 283776.

The previous prime is 615053. The next prime is 615067. The reversal of 615056 is 650516.

It can be written as a sum of positive squares in 2 ways, for example, as 102400 + 512656 = 320^2 + 716^2 .

It is not an unprimeable number, because it can be changed into a prime (615053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271 + ... + 1686.

2⁶¹⁵⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

615056 is an abundant number, since it is smaller than the sum of its proper divisors (668716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

615056 is a wasteful number, since it uses less digits than its factorization.

615056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 615056 is about 784.2550605511. The cubic root of 615056 is about 85.0429310236.

The spelling of 615056 in words is "six hundred fifteen thousand, fifty-six".