313225663506 has 32 divisors (see below), whose sum is σ = 715968919680. Its totient is φ = 89489978496.

The previous prime is 313225663433. The next prime is 313225663529. The reversal of 313225663506 is 605366522313.

It is a super-2 number, since 2×313225663506² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299180 + ... + 1521288.

It is an arithmetic number, because the mean of its divisors is an integer number (22374028740).

Almost surely, 2^313225663506 is an apocalyptic number.

313225663506 is an abundant number, since it is smaller than the sum of its proper divisors (402743256174).

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

313225663506 is a wasteful number, since it uses less digits than its factorization.

313225663506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255698.

The product of its (nonzero) digits is 583200, while the sum is 42.

The spelling of 313225663506 in words is "three hundred thirteen billion, two hundred twenty-five million, six hundred sixty-three thousand, five hundred six".