215065104025 has 12 divisors (see below), whose sum is σ = 267135058512. Its totient is φ = 171758967440.

The previous prime is 215065104013. The next prime is 215065104029. The reversal of 215065104025 is 520401560512.

It is not a de Polignac number, because 215065104025 - 2⁵ = 215065103993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215065104029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7312927 + ... + 7342276.

It is an arithmetic number, because the mean of its divisors is an integer number (22261254876).

Almost surely, 2^215065104025 is an apocalyptic number.

215065104025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215065104025 is a deficient number, since it is larger than the sum of its proper divisors (52069954487).

215065104025 is a wasteful number, since it uses less digits than its factorization.

215065104025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14655800 (or 14655795 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 215065104025 its reverse (520401560512), we get a palindrome (735466664537).

The spelling of 215065104025 in words is "two hundred fifteen billion, sixty-five million, one hundred four thousand, twenty-five".