225487401447 has 72 divisors (see below), whose sum is σ = 405293639040. Its totient is φ = 110245712640.

The previous prime is 225487401439. The next prime is 225487401493. The reversal of 225487401447 is 744104784522.

It is not a de Polignac number, because 225487401447 - 2³ = 225487401439 is a prime.

It is a super-2 number, since 2×225487401447² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225487401396 and 225487401405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225487401407) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 226054 + ... + 708572.

It is an arithmetic number, because the mean of its divisors is an integer number (5629078320).

Almost surely, 2^225487401447 is an apocalyptic number.

225487401447 is a deficient number, since it is larger than the sum of its proper divisors (179806237593).

225487401447 is a wasteful number, since it uses less digits than its factorization.

225487401447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482581 (or 482557 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 48.

The spelling of 225487401447 in words is "two hundred twenty-five billion, four hundred eighty-seven million, four hundred one thousand, four hundred forty-seven".