725755471 has 4 divisors (see below), whose sum is σ = 829434832. Its totient is φ = 622076112.

The previous prime is 725755469. The next prime is 725755487. The reversal of 725755471 is 174557527.

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

It is not a de Polignac number, because 725755471 - 2¹ = 725755469 is a prime.

It is a super-3 number, since 3×725755471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725755411) 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, 51839670 + ... + 51839683.

It is an arithmetic number, because the mean of its divisors is an integer number (207358708).

Almost surely, 2^725755471 is an apocalyptic number.

725755471 is a deficient number, since it is larger than the sum of its proper divisors (103679361).

725755471 is a wasteful number, since it uses less digits than its factorization.

725755471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103679360.

The product of its digits is 343000, while the sum is 43.

The square root of 725755471 is about 26939.8491272687. The cubic root of 725755471 is about 898.6628171335.

The spelling of 725755471 in words is "seven hundred twenty-five million, seven hundred fifty-five thousand, four hundred seventy-one".