20534562048 has 288 divisors, whose sum is σ = 73381496832. Its totient is φ = 4923187200.

The previous prime is 20534562043. The next prime is 20534562053. The reversal of 20534562048 is 84026543502.

It is an interprime number because it is at equal distance from previous prime (20534562043) and next prime (20534562053).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 20534561997 and 20534562015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20534562043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 755413 + ... + 782123.

It is an arithmetic number, because the mean of its divisors is an integer number (254796864).

Almost surely, 2^20534562048 is an apocalyptic number.

20534562048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20534562048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36690748416).

20534562048 is an abundant number, since it is smaller than the sum of its proper divisors (52846934784).

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

20534562048 is a wasteful number, since it uses less digits than its factorization.

20534562048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26761 (or 26747 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 20534562048 in words is "twenty billion, five hundred thirty-four million, five hundred sixty-two thousand, forty-eight".