725561470 has 8 divisors (see below), whose sum is σ = 1306010664. Its totient is φ = 290224584.

The previous prime is 725561449. The next prime is 725561471. The reversal of 725561470 is 74165527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725561471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36278064 + ... + 36278083.

It is an arithmetic number, because the mean of its divisors is an integer number (163251333).

Almost surely, 2^725561470 is an apocalyptic number.

725561470 is a deficient number, since it is larger than the sum of its proper divisors (580449194).

725561470 is a wasteful number, since it uses less digits than its factorization.

725561470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72556154.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 725561470 is about 26936.2482539792. The cubic root of 725561470 is about 898.5827364319.

The spelling of 725561470 in words is "seven hundred twenty-five million, five hundred sixty-one thousand, four hundred seventy".