20525243370 has 16 divisors (see below), whose sum is σ = 49260584160. Its totient is φ = 5473398224.

The previous prime is 20525243351. The next prime is 20525243371. The reversal of 20525243370 is 7334252502.

It is not an unprimeable number, because it can be changed into a prime (20525243371) 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, 342087360 + ... + 342087419.

It is an arithmetic number, because the mean of its divisors is an integer number (3078786510).

Almost surely, 2^20525243370 is an apocalyptic number.

20525243370 is an abundant number, since it is smaller than the sum of its proper divisors (28735340790).

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

20525243370 is a wasteful number, since it uses less digits than its factorization.

20525243370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684174789.

The product of its (nonzero) digits is 50400, while the sum is 33.

Adding to 20525243370 its reverse (7334252502), we get a palindrome (27859495872).

The spelling of 20525243370 in words is "twenty billion, five hundred twenty-five million, two hundred forty-three thousand, three hundred seventy".