20245523105 has 16 divisors (see below), whose sum is σ = 25355130624. Its totient is φ = 15489650880.

The previous prime is 20245523083. The next prime is 20245523107. The reversal of 20245523105 is 50132554202.

It is not a de Polignac number, because 20245523105 - 2¹² = 20245519009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20245523107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 962612 + ... + 983418.

It is an arithmetic number, because the mean of its divisors is an integer number (1584695664).

Almost surely, 2^20245523105 is an apocalyptic number.

It is an amenable number.

20245523105 is a deficient number, since it is larger than the sum of its proper divisors (5109607519).

20245523105 is a wasteful number, since it uses less digits than its factorization.

20245523105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29296.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20245523105 in words is "twenty billion, two hundred forty-five million, five hundred twenty-three thousand, one hundred five".