652685445 has 40 divisors (see below), whose sum is σ = 1172983680. Its totient is φ = 347211360.

The previous prime is 652685443. The next prime is 652685461. The reversal of 652685445 is 544586256.

652685445 is a `hidden beast` number, since 6 + 526 + 85 + 4 + 45 = 666.

It is not a de Polignac number, because 652685445 - 2¹ = 652685443 is a prime.

It is a super-2 number, since 2×652685445² = 851996580229696050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 652685445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652685443) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 175960 + ... + 179630.

It is an arithmetic number, because the mean of its divisors is an integer number (29324592).

Almost surely, 2^652685445 is an apocalyptic number.

It is an amenable number.

652685445 is a deficient number, since it is larger than the sum of its proper divisors (520298235).

652685445 is a wasteful number, since it uses less digits than its factorization.

652685445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127 (or 4118 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 652685445 is about 25547.7091928024. The cubic root of 652685445 is about 867.4304085338.

The spelling of 652685445 in words is "six hundred fifty-two million, six hundred eighty-five thousand, four hundred forty-five".