215225413403 has 64 divisors (see below), whose sum is σ = 306407162880. Its totient is φ = 145587456000.

The previous prime is 215225413373. The next prime is 215225413411. The reversal of 215225413403 is 304314522512.

It is not a de Polignac number, because 215225413403 - 2¹⁸ = 215225151259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 215225413403.

It is not an unprimeable number, because it can be changed into a prime (215225413303) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2564303 + ... + 2646903.

It is an arithmetic number, because the mean of its divisors is an integer number (4787611920).

Almost surely, 2^215225413403 is an apocalyptic number.

215225413403 is a deficient number, since it is larger than the sum of its proper divisors (91181749477).

215225413403 is a wasteful number, since it uses less digits than its factorization.

215225413403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82788.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 215225413403 its reverse (304314522512), we get a palindrome (519539935915).

The spelling of 215225413403 in words is "two hundred fifteen billion, two hundred twenty-five million, four hundred thirteen thousand, four hundred three".