20534252284 has 24 divisors (see below), whose sum is σ = 44227621088. Its totient is φ = 8123440320.

The previous prime is 20534252279. The next prime is 20534252351. The reversal of 20534252284 is 48225243502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28206027 + ... + 28206754.

Almost surely, 2^20534252284 is an apocalyptic number.

It is an amenable number.

20534252284 is an abundant number, since it is smaller than the sum of its proper divisors (23693368804).

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

20534252284 is a wasteful number, since it uses less digits than its factorization.

20534252284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56412805 (or 56412803 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 20534252284 its reverse (48225243502), we get a palindrome (68759495786).

The spelling of 20534252284 in words is "twenty billion, five hundred thirty-four million, two hundred fifty-two thousand, two hundred eighty-four".