20508483 has 8 divisors (see below), whose sum is σ = 27587088. Its totient is φ = 13551104.

The previous prime is 20508473. The next prime is 20508493. The reversal of 20508483 is 38480502.

It is an interprime number because it is at equal distance from previous prime (20508473) and next prime (20508493).

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

It is a cyclic number.

It is not a de Polignac number, because 20508483 - 2⁵ = 20508451 is a prime.

It is a super-2 number, since 2×20508483² = 841195749922578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20508483.

It is not an unprimeable number, because it can be changed into a prime (20508413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29910 + ... + 30587.

It is an arithmetic number, because the mean of its divisors is an integer number (3448386).

Almost surely, 2^20508483 is an apocalyptic number.

20508483 is a deficient number, since it is larger than the sum of its proper divisors (7078605).

20508483 is a wasteful number, since it uses less digits than its factorization.

20508483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60613.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 20508483 is about 4528.6292628123. The cubic root of 20508483 is about 273.7229292887.

Adding to 20508483 its reverse (38480502), we get a palindrome (58988985).

The spelling of 20508483 in words is "twenty million, five hundred eight thousand, four hundred eighty-three".