52725399 has 16 divisors (see below), whose sum is σ = 75578880. Its totient is φ = 32590080.

The previous prime is 52725377. The next prime is 52725403. The reversal of 52725399 is 99352725.

It is not a de Polignac number, because 52725399 - 2⁷ = 52725271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52725399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52725599) 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, 7162 + ... + 12519.

It is an arithmetic number, because the mean of its divisors is an integer number (4723680).

Almost surely, 2^52725399 is an apocalyptic number.

52725399 is a deficient number, since it is larger than the sum of its proper divisors (22853481).

52725399 is a wasteful number, since it uses less digits than its factorization.

52725399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19750.

The product of its digits is 170100, while the sum is 42.

The square root of 52725399 is about 7261.2257229754. The cubic root of 52725399 is about 374.9787223483.

The spelling of 52725399 in words is "fifty-two million, seven hundred twenty-five thousand, three hundred ninety-nine".