20952315 has 24 divisors (see below), whose sum is σ = 36447840. Its totient is φ = 11134464.

The previous prime is 20952293. The next prime is 20952319. The reversal of 20952315 is 51325902.

It is not a de Polignac number, because 20952315 - 2⁶ = 20952251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20952319) 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, 15226 + ... + 16544.

It is an arithmetic number, because the mean of its divisors is an integer number (1518660).

Almost surely, 2^20952315 is an apocalyptic number.

20952315 is a deficient number, since it is larger than the sum of its proper divisors (15495525).

20952315 is a wasteful number, since it uses less digits than its factorization.

20952315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 20952315 is about 4577.3698779976. The cubic root of 20952315 is about 275.6834350936.

The spelling of 20952315 in words is "twenty million, nine hundred fifty-two thousand, three hundred fifteen".