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530025565 = 5106005113
BaseRepresentation
bin11111100101111…
…000110001011101
31100221100002101111
4133211320301131
52041141304230
6124332142021
716064100016
oct3745706135
91327302344
10530025565
11252205063
12129607911
1385a688c4
145057000d
15317e992a
hex1f978c5d

530025565 has 4 divisors (see below), whose sum is σ = 636030684. Its totient is φ = 424020448.

The previous prime is 530025521. The next prime is 530025571. The reversal of 530025565 is 565520035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565520035 = 5113104007.

It can be written as a sum of positive squares in 2 ways, for example, as 245799684 + 284225881 = 15678^2 + 16859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-530025565 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 53002552 + ... + 53002561.

It is an arithmetic number, because the mean of its divisors is an integer number (159007671).

Almost surely, 2530025565 is an apocalyptic number.

It is an amenable number.

530025565 is a deficient number, since it is larger than the sum of its proper divisors (106005119).

530025565 is a wasteful number, since it uses less digits than its factorization.

530025565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106005118.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 530025565 is about 23022.2840960666. The cubic root of 530025565 is about 809.2802451448.

The spelling of 530025565 in words is "five hundred thirty million, twenty-five thousand, five hundred sixty-five".

Divisors: 1 5 106005113 530025565