225537397959 has 16 divisors (see below), whose sum is σ = 306827655264. Its totient is φ = 147310800000.

The previous prime is 225537397949. The next prime is 225537397999. The reversal of 225537397959 is 959793735522.

It is not a de Polignac number, because 225537397959 - 2¹⁵ = 225537365191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225537397959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225537397949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 900292 + ... + 1123209.

It is an arithmetic number, because the mean of its divisors is an integer number (19176728454).

Almost surely, 2^225537397959 is an apocalyptic number.

225537397959 is a deficient number, since it is larger than the sum of its proper divisors (81290257305).

225537397959 is a wasteful number, since it uses less digits than its factorization.

225537397959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024258.

The product of its digits is 160744500, while the sum is 66.

The spelling of 225537397959 in words is "two hundred twenty-five billion, five hundred thirty-seven million, three hundred ninety-seven thousand, nine hundred fifty-nine".