20425402523053 has 4 divisors (see below), whose sum is σ = 22282257297888. Its totient is φ = 18568547748220.

The previous prime is 20425402523011. The next prime is 20425402523069. The reversal of 20425402523053 is 35032520452402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20425402523053 - 2⁹ = 20425402522541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425402523083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928427387401 + ... + 928427387422.

It is an arithmetic number, because the mean of its divisors is an integer number (5570564324472).

Almost surely, 2^{20425402523053} is an apocalyptic number.

It is an amenable number.

20425402523053 is a deficient number, since it is larger than the sum of its proper divisors (1856854774835).

20425402523053 is a wasteful number, since it uses less digits than its factorization.

20425402523053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856854774834.

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 20425402523053 its reverse (35032520452402), we get a palindrome (55457922975455).

The spelling of 20425402523053 in words is "twenty trillion, four hundred twenty-five billion, four hundred two million, five hundred twenty-three thousand, fifty-three".