315261550 has 12 divisors (see below), whose sum is σ = 586386576. Its totient is φ = 126104600.

The previous prime is 315261493. The next prime is 315261563. The reversal of 315261550 is 55162513.

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 5 ways as a sum of consecutive naturals, for example, 3152566 + ... + 3152665.

It is an arithmetic number, because the mean of its divisors is an integer number (48865548).

Almost surely, 2^315261550 is an apocalyptic number.

315261550 is a deficient number, since it is larger than the sum of its proper divisors (271125026).

315261550 is a wasteful number, since it uses less digits than its factorization.

315261550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6305243 (or 6305238 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 315261550 is about 17755.6061569297. The cubic root of 315261550 is about 680.5974780475.

The spelling of 315261550 in words is "three hundred fifteen million, two hundred sixty-one thousand, five hundred fifty".