225548757487 has 4 divisors (see below), whose sum is σ = 231049946736. Its totient is φ = 220047568240.

The previous prime is 225548757481. The next prime is 225548757517. The reversal of 225548757487 is 784757845522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225548757487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225548757481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2750594563 + ... + 2750594644.

It is an arithmetic number, because the mean of its divisors is an integer number (57762486684).

Almost surely, 2^225548757487 is an apocalyptic number.

225548757487 is a deficient number, since it is larger than the sum of its proper divisors (5501189249).

225548757487 is an equidigital number, since it uses as much as digits as its factorization.

225548757487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501189248.

The product of its digits is 175616000, while the sum is 64.

The spelling of 225548757487 in words is "two hundred twenty-five billion, five hundred forty-eight million, seven hundred fifty-seven thousand, four hundred eighty-seven".