4319545725 has 270 divisors, whose sum is σ = 9495739022. Its totient is φ = 1938816000.

The previous prime is 4319545687. The next prime is 4319545729. The reversal of 4319545725 is 5275459134.

4319545725 is a `hidden beast` number, since 4 + 3 + 195 + 457 + 2 + 5 = 666.

It can be written as a sum of positive squares in 9 ways, for example, as 1146364164 + 3173181561 = 33858^2 + 56331^2 .

It is not a de Polignac number, because 4319545725 - 2⁸ = 4319545469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4319545729) by changing a digit.

It is a polite number, since it can be written in 269 ways as a sum of consecutive naturals, for example, 70812195 + ... + 70812255.

Almost surely, 2^4319545725 is an apocalyptic number.

4319545725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4319545725 is an abundant number, since it is smaller than the sum of its proper divisors (5176193297).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4319545725 is a wasteful number, since it uses less digits than its factorization.

4319545725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 97 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 4319545725 is about 65723.2510227545. The cubic root of 4319545725 is about 1628.5934803603.

The spelling of 4319545725 in words is "four billion, three hundred nineteen million, five hundred forty-five thousand, seven hundred twenty-five".