42005025115 has 4 divisors (see below), whose sum is σ = 50406030144. Its totient is φ = 33604020088.

The previous prime is 42005025103. The next prime is 42005025131. The reversal of 42005025115 is 51152050024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42005025115 - 2²⁷ = 41870807387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42005025115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4200502507 + ... + 4200502516.

It is an arithmetic number, because the mean of its divisors is an integer number (12601507536).

Almost surely, 2^42005025115 is an apocalyptic number.

42005025115 is a deficient number, since it is larger than the sum of its proper divisors (8401005029).

42005025115 is an equidigital number, since it uses as much as digits as its factorization.

42005025115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8401005028.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 42005025115 its reverse (51152050024), we get a palindrome (93157075139).

The spelling of 42005025115 in words is "forty-two billion, five million, twenty-five thousand, one hundred fifteen".