725019022220 has 24 divisors (see below), whose sum is σ = 1524657556800. Its totient is φ = 289604254592.

The previous prime is 725019022213. The next prime is 725019022223. The reversal of 725019022220 is 22220910527.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (725019022223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25194905 + ... + 25223664.

It is an arithmetic number, because the mean of its divisors is an integer number (63527398200).

Almost surely, 2^725019022220 is an apocalyptic number.

It is an amenable number.

725019022220 is an abundant number, since it is smaller than the sum of its proper divisors (799638534580).

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

725019022220 is a wasteful number, since it uses less digits than its factorization.

725019022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50419297 (or 50419295 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 725019022220 its reverse (22220910527), we get a palindrome (747239932747).

The spelling of 725019022220 in words is "seven hundred twenty-five billion, nineteen million, twenty-two thousand, two hundred twenty".