20053465 has 8 divisors (see below), whose sum is σ = 24394248. Its totient is φ = 15822720.

The previous prime is 20053457. The next prime is 20053483. The reversal of 20053465 is 56435002.

It can be written as a sum of positive squares in 4 ways, for example, as 5184729 + 14868736 = 2277^2 + 3856^2 .

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

It is not a de Polignac number, because 20053465 - 2³ = 20053457 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, 27106 + ... + 27835.

It is an arithmetic number, because the mean of its divisors is an integer number (3049281).

Almost surely, 2^20053465 is an apocalyptic number.

It is an amenable number.

20053465 is a deficient number, since it is larger than the sum of its proper divisors (4340783).

20053465 is an equidigital number, since it uses as much as digits as its factorization.

20053465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55019.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 20053465 is about 4478.1095341673. The cubic root of 20053465 is about 271.6834236760.

Adding to 20053465 its reverse (56435002), we get a palindrome (76488467).

It can be divided in two parts, 200 and 53465, that multiplied together give a triangular number (10693000 = T₄₆₂₄).

The spelling of 20053465 in words is "twenty million, fifty-three thousand, four hundred sixty-five".