20425514142355 has 24 divisors (see below), whose sum is σ = 28532331466128. Its totient is φ = 13996251557568.

The previous prime is 20425514142307. The next prime is 20425514142403. The reversal of 20425514142355 is 55324141552402.

It is an interprime number because it is at equal distance from previous prime (20425514142307) and next prime (20425514142403).

It is not a de Polignac number, because 20425514142355 - 2¹⁹ = 20425513618067 is a prime.

It is a super-2 number, since 2×20425514142355² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28861824 + ... + 29561053.

It is an arithmetic number, because the mean of its divisors is an integer number (1188847144422).

Almost surely, 2^{20425514142355} is an apocalyptic number.

20425514142355 is a deficient number, since it is larger than the sum of its proper divisors (8106817323773).

20425514142355 is a wasteful number, since it uses less digits than its factorization.

20425514142355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58424323 (or 58424316 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 43.

Adding to 20425514142355 its reverse (55324141552402), we get a palindrome (75749655694757).

The spelling of 20425514142355 in words is "twenty trillion, four hundred twenty-five billion, five hundred fourteen million, one hundred forty-two thousand, three hundred fifty-five".