725461507 has 4 divisors (see below), whose sum is σ = 725528016. Its totient is φ = 725395000.

The previous prime is 725461459. The next prime is 725461543. The reversal of 725461507 is 705164527.

725461507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 725461507 - 2⁷ = 725461379 is a prime.

It is a super-2 number, since 2×725461507² = 1052588796277422098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725461547) 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, 12628 + ... + 40129.

It is an arithmetic number, because the mean of its divisors is an integer number (181382004).

Almost surely, 2^725461507 is an apocalyptic number.

725461507 is a deficient number, since it is larger than the sum of its proper divisors (66509).

725461507 is a wasteful number, since it uses less digits than its factorization.

725461507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66508.

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

The square root of 725461507 is about 26934.3926421221. The cubic root of 725461507 is about 898.5414676328.

The spelling of 725461507 in words is "seven hundred twenty-five million, four hundred sixty-one thousand, five hundred seven".