53545645 has 8 divisors (see below), whose sum is σ = 64544256. Its totient is φ = 42643536.

The previous prime is 53545619. The next prime is 53545669. The reversal of 53545645 is 54654535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53545645 - 2⁹ = 53545133 is a prime.

It is a super-3 number, since 3×53545645³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22897 + ... + 25126.

It is an arithmetic number, because the mean of its divisors is an integer number (8068032).

Almost surely, 2^53545645 is an apocalyptic number.

It is an amenable number.

53545645 is a deficient number, since it is larger than the sum of its proper divisors (10998611).

53545645 is a wasteful number, since it uses less digits than its factorization.

53545645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48251.

The product of its digits is 180000, while the sum is 37.

The square root of 53545645 is about 7317.4889818844. The cubic root of 53545645 is about 376.9132325465.

The spelling of 53545645 in words is "fifty-three million, five hundred forty-five thousand, six hundred forty-five".