225454839064 has 128 divisors (see below), whose sum is σ = 547199815680. Its totient is φ = 84684787200.

The previous prime is 225454838953. The next prime is 225454839101. The reversal of 225454839064 is 460938454522.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1101859 + ... + 1290349.

It is an arithmetic number, because the mean of its divisors is an integer number (4274998560).

Almost surely, 2^225454839064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225454839064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273599907840).

225454839064 is an abundant number, since it is smaller than the sum of its proper divisors (321744976616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225454839064 is a wasteful number, since it uses less digits than its factorization.

225454839064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188601 (or 188597 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 225454839064 in words is "two hundred twenty-five billion, four hundred fifty-four million, eight hundred thirty-nine thousand, sixty-four".