20525350350 has 96 divisors (see below), whose sum is σ = 54453452256. Its totient is φ = 5098291200.

The previous prime is 20525350337. The next prime is 20525350357. The reversal of 20525350350 is 5305352502.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525350357) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 205860 + ... + 288840.

It is an arithmetic number, because the mean of its divisors is an integer number (567223461).

Almost surely, 2^20525350350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20525350350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27226726128).

20525350350 is an abundant number, since it is smaller than the sum of its proper divisors (33928101906).

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

20525350350 is a wasteful number, since it uses less digits than its factorization.

20525350350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83110 (or 83105 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 30.

The spelling of 20525350350 in words is "twenty billion, five hundred twenty-five million, three hundred fifty thousand, three hundred fifty".