20041251535 has 16 divisors (see below), whose sum is σ = 24886068480. Its totient is φ = 15477822720.

The previous prime is 20041251491. The next prime is 20041251553. The reversal of 20041251535 is 53515214002.

It is not a de Polignac number, because 20041251535 - 2¹⁵ = 20041218767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94672 + ... + 221461.

It is an arithmetic number, because the mean of its divisors is an integer number (1555379280).

Almost surely, 2^20041251535 is an apocalyptic number.

20041251535 is a deficient number, since it is larger than the sum of its proper divisors (4844816945).

20041251535 is a wasteful number, since it uses less digits than its factorization.

20041251535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316578.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 20041251535 its reverse (53515214002), we get a palindrome (73556465537).

The spelling of 20041251535 in words is "twenty billion, forty-one million, two hundred fifty-one thousand, five hundred thirty-five".