225487315478 has 16 divisors (see below), whose sum is σ = 361672729344. Its totient is φ = 105061065600.

The previous prime is 225487315477. The next prime is 225487315511. The reversal of 225487315478 is 874513784522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225487315477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32828150 + ... + 32835017.

It is an arithmetic number, because the mean of its divisors is an integer number (22604545584).

Almost surely, 2^225487315478 is an apocalyptic number.

225487315478 is a deficient number, since it is larger than the sum of its proper divisors (136185413866).

225487315478 is a wasteful number, since it uses less digits than its factorization.

225487315478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65663287.

The product of its digits is 15052800, while the sum is 56.

The spelling of 225487315478 in words is "two hundred twenty-five billion, four hundred eighty-seven million, three hundred fifteen thousand, four hundred seventy-eight".