20575315 has 8 divisors (see below), whose sum is σ = 24717168. Its totient is φ = 16442400.

The previous prime is 20575301. The next prime is 20575333. The reversal of 20575315 is 51357502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20575315 - 2⁷ = 20575187 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4924 + ... + 8086.

It is an arithmetic number, because the mean of its divisors is an integer number (3089646).

Almost surely, 2^20575315 is an apocalyptic number.

20575315 is a deficient number, since it is larger than the sum of its proper divisors (4141853).

20575315 is a wasteful number, since it uses less digits than its factorization.

20575315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 20575315 is about 4536.0020943558. The cubic root of 20575315 is about 274.0199383434.

The spelling of 20575315 in words is "twenty million, five hundred seventy-five thousand, three hundred fifteen".