315555 has 16 divisors (see below), whose sum is σ = 512160. Its totient is φ = 165888.

The previous prime is 315551. The next prime is 315559. The reversal of 315555 is 555513.

It is an interprime number because it is at equal distance from previous prime (315551) and next prime (315559).

It is not a de Polignac number, because 315555 - 2² = 315551 is a prime.

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

It is an Ulam number.

315555 is a modest number, since divided by 555 gives 315 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1539 + ... + 1731.

It is an arithmetic number, because the mean of its divisors is an integer number (32010).

2³¹⁵⁵⁵⁵ is an apocalyptic number.

315555 is a deficient number, since it is larger than the sum of its proper divisors (196605).

315555 is a wasteful number, since it uses less digits than its factorization.

315555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310.

The product of its digits is 1875, while the sum is 24.

The square root of 315555 is about 561.7428237192. The cubic root of 315555 is about 68.0808582546.

It can be divided in two parts, 3 and 15555, that multiplied together give a triangular number (46665 = T₃₀₅).

The spelling of 315555 in words is "three hundred fifteen thousand, five hundred fifty-five".