20248048520 has 96 divisors (see below), whose sum is σ = 53075369880. Its totient is φ = 6931814400.

The previous prime is 20248048511. The next prime is 20248048523. The reversal of 20248048520 is 2584084202.

It can be written as a sum of positive squares in 4 ways, for example, as 20156616676 + 91431844 = 141974^2 + 9562^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (20248048523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1366592 + ... + 1381328.

Almost surely, 2^20248048520 is an apocalyptic number.

20248048520 is a gapful number since it is divisible by the number (20) 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 20248048520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26537684940).

20248048520 is an abundant number, since it is smaller than the sum of its proper divisors (32827321360).

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

20248048520 is a wasteful number, since it uses less digits than its factorization.

20248048520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15463 (or 15452 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The spelling of 20248048520 in words is "twenty billion, two hundred forty-eight million, forty-eight thousand, five hundred twenty".