53003645 has 8 divisors (see below), whose sum is σ = 65656320. Its totient is φ = 41034960.

The previous prime is 53003641. The next prime is 53003651. The reversal of 53003645 is 54630035.

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

It is not a de Polignac number, because 53003645 - 2² = 53003641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53003641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170825 + ... + 171134.

It is an arithmetic number, because the mean of its divisors is an integer number (8207040).

Almost surely, 2^53003645 is an apocalyptic number.

It is an amenable number.

53003645 is a deficient number, since it is larger than the sum of its proper divisors (12652675).

53003645 is a wasteful number, since it uses less digits than its factorization.

53003645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341995.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 53003645 is about 7280.3602246043. The cubic root of 53003645 is about 375.6371863326.

The spelling of 53003645 in words is "fifty-three million, three thousand, six hundred forty-five".