725405007 has 4 divisors (see below), whose sum is σ = 967206680. Its totient is φ = 483603336.

The previous prime is 725404997. The next prime is 725405029. The reversal of 725405007 is 700504527.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 725405007 - 2¹⁵ = 725372239 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 (725405407) 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, 120900832 + ... + 120900837.

It is an arithmetic number, because the mean of its divisors is an integer number (241801670).

Almost surely, 2^725405007 is an apocalyptic number.

725405007 is a deficient number, since it is larger than the sum of its proper divisors (241801673).

725405007 is a wasteful number, since it uses less digits than its factorization.

725405007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241801672.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 725405007 is about 26933.3437768132. The cubic root of 725405007 is about 898.5181404540.

The spelling of 725405007 in words is "seven hundred twenty-five million, four hundred five thousand, seven".