20652465 has 16 divisors (see below), whose sum is σ = 33587136. Its totient is φ = 10833600.

The previous prime is 20652439. The next prime is 20652493. The reversal of 20652465 is 56425602.

It is not a de Polignac number, because 20652465 - 2¹⁰ = 20651441 is a prime.

It is a Curzon number.

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, 10371 + ... + 12200.

It is an arithmetic number, because the mean of its divisors is an integer number (2099196).

Almost surely, 2^20652465 is an apocalyptic number.

It is an amenable number.

20652465 is a deficient number, since it is larger than the sum of its proper divisors (12934671).

20652465 is a wasteful number, since it uses less digits than its factorization.

20652465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22640.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 20652465 is about 4544.4983221473. The cubic root of 20652465 is about 274.3620030927.

The spelling of 20652465 in words is "twenty million, six hundred fifty-two thousand, four hundred sixty-five".