20952495 has 12 divisors (see below), whose sum is σ = 36317736. Its totient is φ = 11174640.

The previous prime is 20952479. The next prime is 20952521. The reversal of 20952495 is 59425902.

It is a happy number.

It is not a de Polignac number, because 20952495 - 2⁴ = 20952479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232761 + ... + 232850.

It is an arithmetic number, because the mean of its divisors is an integer number (3026478).

Almost surely, 2^20952495 is an apocalyptic number.

20952495 is a deficient number, since it is larger than the sum of its proper divisors (15365241).

20952495 is a wasteful number, since it uses less digits than its factorization.

20952495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465622 (or 465619 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 20952495 is about 4577.3895399015. The cubic root of 20952495 is about 275.6842245510.

The spelling of 20952495 in words is "twenty million, nine hundred fifty-two thousand, four hundred ninety-five".