53425664 has 20 divisors (see below), whose sum is σ = 106748004. Its totient is φ = 26712576.

The previous prime is 53425661. The next prime is 53425693. The reversal of 53425664 is 46652435.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53425661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51662 + ... + 52685.

Almost surely, 2^53425664 is an apocalyptic number.

It is an amenable number.

53425664 is a deficient number, since it is larger than the sum of its proper divisors (53322340).

53425664 is an equidigital number, since it uses as much as digits as its factorization.

53425664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104365 (or 104349 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 53425664 is about 7309.2861484553. The cubic root of 53425664 is about 376.6315025344.

The spelling of 53425664 in words is "fifty-three million, four hundred twenty-five thousand, six hundred sixty-four".