725574242 has 8 divisors (see below), whose sum is σ = 1145643600. Its totient is φ = 343693044.

The previous prime is 725574209. The next prime is 725574257. The reversal of 725574242 is 242475527.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 19094059 = 725574242 / (7 + 2 + 5 + 5 + 7 + 4 + 2 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 725574196 and 725574205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9546992 + ... + 9547067.

It is an arithmetic number, because the mean of its divisors is an integer number (143205450).

Almost surely, 2^725574242 is an apocalyptic number.

725574242 is a deficient number, since it is larger than the sum of its proper divisors (420069358).

725574242 is a wasteful number, since it uses less digits than its factorization.

725574242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19094080.

The product of its digits is 156800, while the sum is 38.

The square root of 725574242 is about 26936.4853312380. The cubic root of 725574242 is about 898.5880089608.

The spelling of 725574242 in words is "seven hundred twenty-five million, five hundred seventy-four thousand, two hundred forty-two".