316289550 has 24 divisors (see below), whose sum is σ = 784398456. Its totient is φ = 84343840.

The previous prime is 316289543. The next prime is 316289569. The reversal of 316289550 is 55982613.

It is a junction number, because it is equal to n+sod(n) for n = 316289499 and 316289508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054149 + ... + 1054448.

It is an arithmetic number, because the mean of its divisors is an integer number (32683269).

Almost surely, 2^316289550 is an apocalyptic number.

316289550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

316289550 is an abundant number, since it is smaller than the sum of its proper divisors (468108906).

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

316289550 is a wasteful number, since it uses less digits than its factorization.

316289550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108612 (or 2108607 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 316289550 is about 17784.5311998939. The cubic root of 316289550 is about 681.3364360208.

The spelling of 316289550 in words is "three hundred sixteen million, two hundred eighty-nine thousand, five hundred fifty".