225061040 has 80 divisors (see below), whose sum is σ = 536275200. Its totient is φ = 87816960.

The previous prime is 225061037. The next prime is 225061043. The reversal of 225061040 is 40160522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (225061037) and next prime (225061043).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (225061043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066535 + ... + 1066745.

It is an arithmetic number, because the mean of its divisors is an integer number (6703440).

Almost surely, 2^225061040 is an apocalyptic number.

225061040 is a gapful number since it is divisible by the number (20) 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 225061040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268137600).

225061040 is an abundant number, since it is smaller than the sum of its proper divisors (311214160).

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

225061040 is a wasteful number, since it uses less digits than its factorization.

225061040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 225061040 is about 15002.0345286898. The cubic root of 225061040 is about 608.2751957117.

The spelling of 225061040 in words is "two hundred twenty-five million, sixty-one thousand, forty".