20425365355 has 32 divisors (see below), whose sum is σ = 25210761408. Its totient is φ = 15880665600.

The previous prime is 20425365319. The next prime is 20425365397. The reversal of 20425365355 is 55356352402.

It is a de Polignac number, because none of the positive numbers 2^k-20425365355 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20004745 + ... + 20005765.

It is an arithmetic number, because the mean of its divisors is an integer number (787836294).

Almost surely, 2^20425365355 is an apocalyptic number.

20425365355 is a deficient number, since it is larger than the sum of its proper divisors (4785396053).

20425365355 is a wasteful number, since it uses less digits than its factorization.

20425365355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807.

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 20425365355 in words is "twenty billion, four hundred twenty-five million, three hundred sixty-five thousand, three hundred fifty-five".