312055505 has 8 divisors (see below), whose sum is σ = 374632872. Its totient is φ = 249533568.

The previous prime is 312055501. The next prime is 312055507. The reversal of 312055505 is 505550213.

It can be written as a sum of positive squares in 4 ways, for example, as 97930816 + 214124689 = 9896^2 + 14633^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 312055505 - 2² = 312055501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312055501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254 + ... + 24983.

It is an arithmetic number, because the mean of its divisors is an integer number (46829109).

Almost surely, 2^312055505 is an apocalyptic number.

It is an amenable number.

312055505 is a deficient number, since it is larger than the sum of its proper divisors (62577367).

312055505 is a wasteful number, since it uses less digits than its factorization.

312055505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27715.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 312055505 is about 17665.0928387031. The cubic root of 312055505 is about 678.2825061307.

The spelling of 312055505 in words is "three hundred twelve million, fifty-five thousand, five hundred five".