313215055 has 16 divisors (see below), whose sum is σ = 399988800. Its totient is φ = 234634752.

The previous prime is 313215043. The next prime is 313215059. The reversal of 313215055 is 550512313.

It is a cyclic number.

It is not a de Polignac number, because 313215055 - 2⁹ = 313214543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313215059) 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, 7657 + ... + 26173.

It is an arithmetic number, because the mean of its divisors is an integer number (24999300).

Almost surely, 2^313215055 is an apocalyptic number.

313215055 is a deficient number, since it is larger than the sum of its proper divisors (86773745).

313215055 is a wasteful number, since it uses less digits than its factorization.

313215055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18738.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 313215055 is about 17697.8827829772. The cubic root of 313215055 is about 679.1215986421.

Adding to 313215055 its reverse (550512313), we get a palindrome (863727368).

The spelling of 313215055 in words is "three hundred thirteen million, two hundred fifteen thousand, fifty-five".