225478743024 has 160 divisors (see below), whose sum is σ = 626587467264. Its totient is φ = 69613895680.

The previous prime is 225478743019. The next prime is 225478743029. The reversal of 225478743024 is 420347874522.

It is an interprime number because it is at equal distance from previous prime (225478743019) and next prime (225478743029).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225478743029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34352767 + ... + 34359329.

Almost surely, 2^225478743024 is an apocalyptic number.

225478743024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225478743024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313293733632).

225478743024 is an abundant number, since it is smaller than the sum of its proper divisors (401108724240).

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

225478743024 is a wasteful number, since it uses less digits than its factorization.

225478743024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7255 (or 7249 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 48.

The spelling of 225478743024 in words is "two hundred twenty-five billion, four hundred seventy-eight million, seven hundred forty-three thousand, twenty-four".