20570252735 has 16 divisors (see below), whose sum is σ = 25054872480. Its totient is φ = 16210903680.

The previous prime is 20570252719. The next prime is 20570252737. The reversal of 20570252735 is 53725207502.

It is not a de Polignac number, because 20570252735 - 2⁴ = 20570252719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20570252737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14801 + ... + 203370.

It is an arithmetic number, because the mean of its divisors is an integer number (1565929530).

Almost surely, 2^20570252735 is an apocalyptic number.

20570252735 is a deficient number, since it is larger than the sum of its proper divisors (4484619745).

20570252735 is a wasteful number, since it uses less digits than its factorization.

20570252735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218458.

The product of its (nonzero) digits is 147000, while the sum is 38.

The spelling of 20570252735 in words is "twenty billion, five hundred seventy million, two hundred fifty-two thousand, seven hundred thirty-five".