20425352015215 has 32 divisors (see below), whose sum is σ = 28678941823104. Its totient is φ = 13675792343040.

The previous prime is 20425352015137. The next prime is 20425352015231. The reversal of 20425352015215 is 51251025352402.

It is not a de Polignac number, because 20425352015215 - 2¹⁹ = 20425351490927 is a prime.

It is a congruent 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, 34623234 + ... + 35208223.

It is an arithmetic number, because the mean of its divisors is an integer number (896216931972).

Almost surely, 2^{20425352015215} is an apocalyptic number.

20425352015215 is a deficient number, since it is larger than the sum of its proper divisors (8253589807889).

20425352015215 is a wasteful number, since it uses less digits than its factorization.

20425352015215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69831667.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 20425352015215 its reverse (51251025352402), we get a palindrome (71676377367617).

The spelling of 20425352015215 in words is "twenty trillion, four hundred twenty-five billion, three hundred fifty-two million, fifteen thousand, two hundred fifteen".