53425399 has 4 divisors (see below), whose sum is σ = 53440480. Its totient is φ = 53410320.

The previous prime is 53425387. The next prime is 53425423. The reversal of 53425399 is 99352435.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53425399 - 2⁵ = 53425367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53425199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994 + ... + 10384.

It is an arithmetic number, because the mean of its divisors is an integer number (13360120).

Almost surely, 2^53425399 is an apocalyptic number.

53425399 is a deficient number, since it is larger than the sum of its proper divisors (15081).

53425399 is an equidigital number, since it uses as much as digits as its factorization.

53425399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15080.

The product of its digits is 145800, while the sum is 40.

The square root of 53425399 is about 7309.2680208076. The cubic root of 53425399 is about 376.6308798154.

It can be divided in two parts, 53425 and 399, that added together give a square (53824 = 232²).

The spelling of 53425399 in words is "fifty-three million, four hundred twenty-five thousand, three hundred ninety-nine".