725465420 has 12 divisors (see below), whose sum is σ = 1523477424. Its totient is φ = 290186160.

The previous prime is 725465417. The next prime is 725465423. The reversal of 725465420 is 24564527.

It is an interprime number because it is at equal distance from previous prime (725465417) and next prime (725465423).

It is not an unprimeable number, because it can be changed into a prime (725465423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18136616 + ... + 18136655.

It is an arithmetic number, because the mean of its divisors is an integer number (126956452).

Almost surely, 2^725465420 is an apocalyptic number.

It is an amenable number.

725465420 is an abundant number, since it is smaller than the sum of its proper divisors (798012004).

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

725465420 is a wasteful number, since it uses less digits than its factorization.

725465420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36273280 (or 36273278 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 725465420 is about 26934.4652814939. The cubic root of 725465420 is about 898.5430831499.

The spelling of 725465420 in words is "seven hundred twenty-five million, four hundred sixty-five thousand, four hundred twenty".