725420437 has 16 divisors (see below), whose sum is σ = 910632960. Its totient is φ = 563449392.

The previous prime is 725420411. The next prime is 725420453. The reversal of 725420437 is 734024527.

725420437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 725420437 - 2⁷ = 725420309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725420467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115513 + ... + 121630.

It is an arithmetic number, because the mean of its divisors is an integer number (56914560).

Almost surely, 2^725420437 is an apocalyptic number.

It is an amenable number.

725420437 is a deficient number, since it is larger than the sum of its proper divisors (185212523).

725420437 is a wasteful number, since it uses less digits than its factorization.

725420437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237192.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 725420437 is about 26933.6302231987. The cubic root of 725420437 is about 898.5245111648.

The spelling of 725420437 in words is "seven hundred twenty-five million, four hundred twenty thousand, four hundred thirty-seven".