725537422 has 8 divisors (see below), whose sum is σ = 1102082400. Its totient is φ = 358176624.

The previous prime is 725537387. The next prime is 725537429. The reversal of 725537422 is 224735527.

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 (725537429) 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, 2295847 + ... + 2296162.

It is an arithmetic number, because the mean of its divisors is an integer number (137760300).

Almost surely, 2^725537422 is an apocalyptic number.

725537422 is a deficient number, since it is larger than the sum of its proper divisors (376544978).

725537422 is a wasteful number, since it uses less digits than its factorization.

725537422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592090.

The product of its digits is 117600, while the sum is 37.

The square root of 725537422 is about 26935.8018629481. The cubic root of 725537422 is about 898.5728087840.

The spelling of 725537422 in words is "seven hundred twenty-five million, five hundred thirty-seven thousand, four hundred twenty-two".