725164471 has 2 divisors, whose sum is σ = 725164472. Its totient is φ = 725164470.

The previous prime is 725164379. The next prime is 725164477. The reversal of 725164471 is 174461527.

It is a strong prime.

It is an emirp because it is prime and its reverse (174461527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725164471 - 2¹⁷ = 725033399 is a prime.

It is a super-3 number, since 3×725164471³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 725164471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725164477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362582235 + 362582236.

It is an arithmetic number, because the mean of its divisors is an integer number (362582236).

Almost surely, 2^725164471 is an apocalyptic number.

725164471 is a deficient number, since it is larger than the sum of its proper divisors (1).

725164471 is an equidigital number, since it uses as much as digits as its factorization.

725164471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 725164471 is about 26928.8780122752. The cubic root of 725164471 is about 898.4188166969.

The spelling of 725164471 in words is "seven hundred twenty-five million, one hundred sixty-four thousand, four hundred seventy-one".