420011110025 has 48 divisors (see below), whose sum is σ = 591165131760. Its totient is φ = 293816140800.

The previous prime is 420011110009. The next prime is 420011110061. The reversal of 420011110025 is 520011110024.

It can be written as a sum of positive squares in 24 ways, for example, as 304460064841 + 115551045184 = 551779^2 + 339928^2 .

It is not a de Polignac number, because 420011110025 - 2⁴ = 420011110009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420011109985 and 420011110012.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79115 + ... + 919935.

It is an arithmetic number, because the mean of its divisors is an integer number (12315940245).

Almost surely, 2^420011110025 is an apocalyptic number.

It is an amenable number.

420011110025 is a deficient number, since it is larger than the sum of its proper divisors (171154021735).

420011110025 is a wasteful number, since it uses less digits than its factorization.

420011110025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840926 (or 840921 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 420011110025 its reverse (520011110024), we get a palindrome (940022220049).

Subtracting 420011110025 from its reverse (520011110024), we obtain a palindrome (99999999999).

The spelling of 420011110025 in words is "four hundred twenty billion, eleven million, one hundred ten thousand, twenty-five".