313325551 has 24 divisors (see below), whose sum is σ = 399278160. Its totient is φ = 243129600.

The previous prime is 313325549. The next prime is 313325591. The reversal of 313325551 is 155523313.

It is not a de Polignac number, because 313325551 - 2¹ = 313325549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313325531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143911 + ... + 146071.

It is an arithmetic number, because the mean of its divisors is an integer number (16636590).

Almost surely, 2^313325551 is an apocalyptic number.

313325551 is a deficient number, since it is larger than the sum of its proper divisors (85952609).

313325551 is a wasteful number, since it uses less digits than its factorization.

313325551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455 (or 2448 counting only the distinct ones).

The product of its digits is 6750, while the sum is 28.

The square root of 313325551 is about 17701.0042370482. The cubic root of 313325551 is about 679.2014494203.

Adding to 313325551 its reverse (155523313), we get a palindrome (468848864).

The spelling of 313325551 in words is "three hundred thirteen million, three hundred twenty-five thousand, five hundred fifty-one".