315225505 has 16 divisors (see below), whose sum is σ = 447217920. Its totient is φ = 208700352.

The previous prime is 315225481. The next prime is 315225527. The reversal of 315225505 is 505522513.

It is not a de Polignac number, because 315225505 - 2⁵ = 315225473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154269 + ... + 156298.

It is an arithmetic number, because the mean of its divisors is an integer number (27951120).

Almost surely, 2^315225505 is an apocalyptic number.

315225505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315225505 is a deficient number, since it is larger than the sum of its proper divisors (131992415).

315225505 is a wasteful number, since it uses less digits than its factorization.

315225505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310608.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 315225505 is about 17754.5910963897. The cubic root of 315225505 is about 680.5715386636.

The spelling of 315225505 in words is "three hundred fifteen million, two hundred twenty-five thousand, five hundred five".