20051535315 has 32 divisors (see below), whose sum is σ = 37357479936. Its totient is φ = 8993462400.

The previous prime is 20051535313. The next prime is 20051535341. The reversal of 20051535315 is 51353515002.

It is not a de Polignac number, because 20051535315 - 2¹ = 20051535313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20051535313) 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 31 ways as a sum of consecutive naturals, for example, 1796011 + ... + 1807140.

It is an arithmetic number, because the mean of its divisors is an integer number (1167421248).

Almost surely, 2^20051535315 is an apocalyptic number.

20051535315 is a deficient number, since it is larger than the sum of its proper divisors (17305944621).

20051535315 is a wasteful number, since it uses less digits than its factorization.

20051535315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603219.

The product of its (nonzero) digits is 11250, while the sum is 30.

The spelling of 20051535315 in words is "twenty billion, fifty-one million, five hundred thirty-five thousand, three hundred fifteen".