20434542025522 has 8 divisors (see below), whose sum is σ = 30653356414572. Its totient is φ = 10216756554000.

The previous prime is 20434542025489. The next prime is 20434542025537. The reversal of 20434542025522 is 22552024543402.

It can be written as a sum of positive squares in 2 ways, for example, as 13319353885761 + 7115188139761 = 3649569^2 + 2667431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×20434542025522³ (a number of 41 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 257179729 + ... + 257259172.

Almost surely, 2^{20434542025522} is an apocalyptic number.

20434542025522 is a deficient number, since it is larger than the sum of its proper divisors (10218814389050).

20434542025522 is a wasteful number, since it uses less digits than its factorization.

20434542025522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514458764.

The product of its (nonzero) digits is 768000, while the sum is 40.

Adding to 20434542025522 its reverse (22552024543402), we get a palindrome (42986566568924).

The spelling of 20434542025522 in words is "twenty trillion, four hundred thirty-four billion, five hundred forty-two million, twenty-five thousand, five hundred twenty-two".