20545482 has 16 divisors (see below), whose sum is σ = 41136480. Its totient is φ = 6840912.

The previous prime is 20545477. The next prime is 20545487. The reversal of 20545482 is 28454502.

It is an interprime number because it is at equal distance from previous prime (20545477) and next prime (20545487).

It is a super-2 number, since 2×20545482² = 844233661224648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20545487) 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, 7744 + ... + 10052.

It is an arithmetic number, because the mean of its divisors is an integer number (2571030).

Almost surely, 2^20545482 is an apocalyptic number.

20545482 is an abundant number, since it is smaller than the sum of its proper divisors (20590998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20545482 is a wasteful number, since it uses less digits than its factorization.

20545482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797.

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 20545482 is about 4532.7124329699. The cubic root of 20545482 is about 273.8874366698.

Adding to 20545482 its reverse (28454502), we get a palindrome (48999984).

The spelling of 20545482 in words is "twenty million, five hundred forty-five thousand, four hundred eighty-two".