53170725 has 12 divisors (see below), whose sum is σ = 87909056. Its totient is φ = 28357680.

The previous prime is 53170723. The next prime is 53170751. The reversal of 53170725 is 52707135.

It is not a de Polignac number, because 53170725 - 2¹ = 53170723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53170692 and 53170701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53170723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354397 + ... + 354546.

Almost surely, 2^53170725 is an apocalyptic number.

It is an amenable number.

53170725 is a deficient number, since it is larger than the sum of its proper divisors (34738331).

53170725 is a wasteful number, since it uses less digits than its factorization.

53170725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708956 (or 708951 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 53170725 is about 7291.8259030232. The cubic root of 53170725 is about 376.0314713547.

The spelling of 53170725 in words is "fifty-three million, one hundred seventy thousand, seven hundred twenty-five".