645053335 has 8 divisors (see below), whose sum is σ = 774610560. Its totient is φ = 515678304.

The previous prime is 645053329. The next prime is 645053359. The reversal of 645053335 is 533350546.

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 645053335 - 2³ = 645053327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 645053335.

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, 37632 + ... + 52021.

It is an arithmetic number, because the mean of its divisors is an integer number (96826320).

Almost surely, 2^645053335 is an apocalyptic number.

645053335 is a deficient number, since it is larger than the sum of its proper divisors (129557225).

645053335 is a wasteful number, since it uses less digits than its factorization.

645053335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91097.

The product of its (nonzero) digits is 81000, while the sum is 34.

The square root of 645053335 is about 25397.9002084818. The cubic root of 645053335 is about 864.0360741504.

The spelling of 645053335 in words is "six hundred forty-five million, fifty-three thousand, three hundred thirty-five".