42215020265 has 24 divisors (see below), whose sum is σ = 55861251264. Its totient is φ = 30602976800.

The previous prime is 42215020259. The next prime is 42215020273. The reversal of 42215020265 is 56202051224.

42215020265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-42215020265 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75974 + ... + 300336.

It is an arithmetic number, because the mean of its divisors is an integer number (2327552136).

Almost surely, 2^42215020265 is an apocalyptic number.

It is an amenable number.

42215020265 is a deficient number, since it is larger than the sum of its proper divisors (13646230999).

42215020265 is a wasteful number, since it uses less digits than its factorization.

42215020265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224701 (or 224690 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 42215020265 its reverse (56202051224), we get a palindrome (98417071489).

The spelling of 42215020265 in words is "forty-two billion, two hundred fifteen million, twenty thousand, two hundred sixty-five".