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507045025 = 5220281801
BaseRepresentation
bin11110001110001…
…110010010100001
31022100002120000101
4132032032102201
52014300420100
6122151422401
715364545244
oct3616162241
91270076011
10507045025
11240239483
12121984a01
1381080956
144b4ab25b
152e7aa86a
hex1e38e4a1

507045025 has 6 divisors (see below), whose sum is σ = 628735862. Its totient is φ = 405636000.

The previous prime is 507045023. The next prime is 507045029. The reversal of 507045025 is 520540705.

It can be written as a sum of positive squares in 3 ways, for example, as 12027024 + 495018001 = 3468^2 + 22249^2 .

It is not a de Polignac number, because 507045025 - 21 = 507045023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 507044984 and 507045002.

It is not an unprimeable number, because it can be changed into a prime (507045023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10140876 + ... + 10140925.

Almost surely, 2507045025 is an apocalyptic number.

It is an amenable number.

507045025 is a deficient number, since it is larger than the sum of its proper divisors (121690837).

507045025 is a wasteful number, since it uses less digits than its factorization.

507045025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20281811 (or 20281806 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 507045025 is about 22517.6602914246. The cubic root of 507045025 is about 797.4109136836.

The spelling of 507045025 in words is "five hundred seven million, forty-five thousand, twenty-five".

Divisors: 1 5 25 20281801 101409005 507045025