725707653 has 16 divisors (see below), whose sum is σ = 1056953856. Its totient is φ = 439248240.

The previous prime is 725707651. The next prime is 725707657. The reversal of 725707653 is 356707527.

It is not a de Polignac number, because 725707653 - 2¹ = 725707651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725707651) 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, 12000 + ... + 39942.

It is an arithmetic number, because the mean of its divisors is an integer number (66059616).

Almost surely, 2^725707653 is an apocalyptic number.

It is an amenable number.

725707653 is a deficient number, since it is larger than the sum of its proper divisors (331246203).

725707653 is a wasteful number, since it uses less digits than its factorization.

725707653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28744.

The product of its (nonzero) digits is 308700, while the sum is 42.

The square root of 725707653 is about 26938.9616169592. The cubic root of 725707653 is about 898.6430799060.

The spelling of 725707653 in words is "seven hundred twenty-five million, seven hundred seven thousand, six hundred fifty-three".