2229725520 has 120 divisors (see below), whose sum is σ = 8168932512. Its totient is φ = 540537600.

The previous prime is 2229725507. The next prime is 2229725527. The reversal of 2229725520 is 255279222.

2229725520 is a `hidden beast` number, since 2 + 22 + 97 + 25 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2229725527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132846 + ... + 148685.

Almost surely, 2^2229725520 is an apocalyptic number.

2229725520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2229725520 is an abundant number, since it is smaller than the sum of its proper divisors (5939206992).

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

2229725520 is a wasteful number, since it uses less digits than its factorization.

2229725520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281561 (or 281552 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 2229725520 is about 47219.9695044374. The cubic root of 2229725520 is about 1306.4229513296.

The spelling of 2229725520 in words is "two billion, two hundred twenty-nine million, seven hundred twenty-five thousand, five hundred twenty".